{"title":"Digital Meters","description":"\u003ch2\u003eTurn Every Variable Into a Number\u003c\/h2\u003e\n\u003cp\u003eHealthy plants depend on dozens of conditions staying inside narrow windows at the same time. Digital meters make those invisible variables visible: nutrient strength, root-zone acidity, light intensity, temperature, and humidity. Consistent measurement lets growers repeat what works, correct what doesn't, and scale results from one tent to an entire facility.\u003c\/p\u003e\n\u003ch3\u003eMeasure Water, Light, and Climate With Confidence\u003c\/h3\u003e\n\u003cp\u003eDifferent problems call for different instruments. Leading brands cover every major measurement point in the grow.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound-the-Clock Water Quality\u003c\/strong\u003e: The \u003ca href=\"\/products\/hm-digital-hydromaster-hm100-continuous-ph-tds-ec-temp-meter\" title=\"HM Digital Hydromaster HM100 continuous pH, TDS, EC and temp meter\" alt=\"HM Digital Hydromaster HM100\"\u003eHM Digital Hydromaster HM100\u003c\/a\u003e monitors pH, TDS, EC, and temperature continuously, so growers see changes in real time instead of between spot-checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerified Light Intensity\u003c\/strong\u003e: The \u003ca href=\"\/products\/photobio-advanced-quantum-par-meter\" title=\"Photobio Advanced Quantum PAR Meter\" alt=\"Photobio Quantum PAR Meter\"\u003ePhotobio Quantum PAR Meter\u003c\/a\u003e measures the full 400–700nm photosynthetic band and stores up to 99 readings. Growers confirm light levels across the whole canopy rather than trusting the fixture's spec sheet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Climate Tracking\u003c\/strong\u003e: The \u003ca href=\"\/products\/vivosun-aerolab-thb1s-hygrometer-bluetooth-app\" title=\"Vivosun AeroLab THB1S Bluetooth hygro-thermometer\" alt=\"Vivosun AeroLab THB1S hygro-thermometer\"\u003eVivosun AeroLab THB1S\u003c\/a\u003e logs dual-channel temperature and humidity to an app with two years of data storage, revealing overnight swings that a single glance never catches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMatching the Meter to Your Grow\u003c\/h3\u003e\n\u003cp\u003eStart with the variable that limits your results most, then choose a format that fits how often and where you test.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBudget-Friendly Water Checks\u003c\/strong\u003e: The \u003ca href=\"\/products\/hm-digital-tds-3-tds-temp-meter-with-case\" title=\"HM Digital TDS-3 TDS and temperature meter\" alt=\"HM Digital TDS-3 meter\"\u003eHM Digital TDS-3\u003c\/a\u003e gives new growers fast, temperature-compensated TDS readings in a pocket-sized pen. It's an easy first step toward consistent feeding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Multi-Reservoir Testing\u003c\/strong\u003e: The \u003ca href=\"\/products\/bluelab-combo-meter-replaceable-ph-ec-probes-portable\" title=\"Bluelab Combo Meter portable pH, EC and temperature meter\" alt=\"Bluelab Combo Meter\"\u003eBluelab Combo Meter\u003c\/a\u003e reads pH, EC, and temperature through replaceable probes on 2-metre cables. One handheld unit covers tanks across an entire facility, and a worn probe never retires the meter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeep Accuracy on Track\u003c\/strong\u003e: Every pH and EC meter drifts over time. Stock buffers and storage fluid from \u003ca href=\"\/collections\/calibration-solutions\" title=\"pH and EC calibration and storage solutions\" alt=\"Calibration solutions\"\u003eCalibration Solutions\u003c\/a\u003e to run regular 2-point calibrations and keep probes hydrated.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWant a compact tester that fits in a shirt pocket? Browse \u003ca href=\"\/collections\/pen-meters\" title=\"Pen meters for pH and EC testing\" alt=\"Pen meters\"\u003ePen Meters\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eGetting Reliable Data From Every Reading\u003c\/h3\u003e\n\u003cp\u003eAccurate hardware still needs good technique to produce trustworthy numbers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasure at Consistent Times\u003c\/strong\u003e: Take readings at the same point in the light cycle each day. Consistent timing reveals real trends instead of normal daily fluctuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMap the Canopy, Not One Spot\u003c\/strong\u003e: Take PAR and climate readings at several positions across the room. Corners and edges often run dimmer, hotter, or more humid than the center.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrate on Schedule\u003c\/strong\u003e: Calibrate pH meters monthly and after probe cleaning, and verify EC against a standard solution. Readings that seem stable can still be stable and wrong.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAccurate meters show where conditions stand. Knowing the target values turns those readings into action. For the ideal climate at every growth stage, see the \u003ca href=\"\/blogs\/Articles\/grow-room-temp-and-humidity-chart-for-perfect-climate-control\" title=\"Grow room temperature and humidity chart\" alt=\"Grow room temp and humidity chart article\"\u003eGrow Room Temp and Humidity Chart for Perfect Climate Control\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cstyle\u003e\n  .faq-container { text-align: left; }\n  .faq-item { margin-bottom: 1rem; }\n  .faq-question { font-weight: bold; margin-bottom: 0.25rem; }\n  .faq-answer { margin-left: 0; }\n\u003c\/style\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/FAQPage\" itemscope=\"\" class=\"faq-container\"\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Question\" itemprop=\"mainEntity\" itemscope=\"\" class=\"faq-item\"\u003e\n\u003cdiv itemprop=\"name\" class=\"faq-question\"\u003eWhich meters does every grower need?\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Answer\" itemprop=\"acceptedAnswer\" itemscope=\"\" class=\"faq-answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eMost growers start with a pH meter and an EC or TDS meter, since these two readings control nutrient availability and strength. A hygro-thermometer for temperature and humidity comes next. Indoor growers running LED fixtures benefit from a PAR meter to confirm light intensity across the canopy.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Question\" itemprop=\"mainEntity\" itemscope=\"\" class=\"faq-item\"\u003e\n\u003cdiv itemprop=\"name\" class=\"faq-question\"\u003eWhat is the difference between EC and TDS?\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Answer\" itemprop=\"acceptedAnswer\" itemscope=\"\" class=\"faq-answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eEC measures how well a solution conducts electricity, which rises with dissolved nutrient salts. TDS (ppm) is a conversion of that EC reading using a scale factor, usually 500 or 700. Match your meter's ppm scale to your nutrient feed chart, or work in EC to avoid conversion confusion entirely.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Question\" itemprop=\"mainEntity\" itemscope=\"\" class=\"faq-item\"\u003e\n\u003cdiv itemprop=\"name\" class=\"faq-question\"\u003eShould I choose a handheld meter or a continuous monitor?\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Answer\" itemprop=\"acceptedAnswer\" itemscope=\"\" class=\"faq-answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eHandheld meters test multiple reservoirs and substrates and cost less. Continuous monitors such as the HM Digital Hydromaster HM100 stay in one reservoir and show changes in real time. That makes them valuable for recirculating hydroponic systems, where pH and EC drift quickly.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Question\" itemprop=\"mainEntity\" itemscope=\"\" class=\"faq-item\"\u003e\n\u003cdiv itemprop=\"name\" class=\"faq-question\"\u003eHow often should I calibrate my pH meter?\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Answer\" itemprop=\"acceptedAnswer\" itemscope=\"\" class=\"faq-answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eCalibrate at least monthly using pH 7.0 and pH 4.0 buffer solutions, and again after cleaning the probe or whenever readings seem inconsistent. Store the probe in KCl storage solution between uses to maintain accuracy and extend its life.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Question\" itemprop=\"mainEntity\" itemscope=\"\" class=\"faq-item\"\u003e\n\u003cdiv itemprop=\"name\" class=\"faq-question\"\u003eAre analog soil meters accurate enough?\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Answer\" itemprop=\"acceptedAnswer\" itemscope=\"\" class=\"faq-answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eBattery-free analog meters, like the Active Air 2-Way and 3-Way meters, give quick directional readings for moisture and general pH trends in soil gardens. For precise nutrient management in hydroponics, coco, or commercial soil, a digital meter with a calibratable probe delivers far more reliable data.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Question\" itemprop=\"mainEntity\" itemscope=\"\" class=\"faq-item\"\u003e\n\u003cdiv itemprop=\"name\" class=\"faq-question\"\u003eWhy do I need a PAR meter if my light lists its output?\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Answer\" itemprop=\"acceptedAnswer\" itemscope=\"\" class=\"faq-answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eManufacturer PPFD figures come from controlled test conditions at a fixed height. Real grow rooms vary with hanging height, reflectivity, fixture age, and canopy position. A quantum PAR meter shows the actual light each plant receives, so growers can adjust height and dimming precisely.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Question\" itemprop=\"mainEntity\" itemscope=\"\" class=\"faq-item\"\u003e\n\u003cdiv itemprop=\"name\" class=\"faq-question\"\u003eCan I test pH directly in soil or coco?\u003c\/div\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Answer\" itemprop=\"acceptedAnswer\" itemscope=\"\" class=\"faq-answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eYes, with a meter built for it. Standard solution probes can break when pushed into media. Speartip designs such as the Bluelab Soil pH Meter and the Combo Meter with Soil pH Probe insert directly into soil and coco for accurate root-zone readings.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"hm-digital-aquapro-tds-temp-meter","title":"HM Digital AquaPro TDS Temp Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital AquaPro TDS Temp Meter\u003c\/h2\u003e\u003cp\u003eMaintaining the perfect nutrient balance in your reservoir is the difference between a thriving harvest and a failed crop. The HM Digital AquaPro TDS Temp Meter provides growers with a reliable, handheld solution to monitor Total Dissolved Solids (TDS) and ensure your plants receive the exact nutrient concentration they need. By measuring the concentration of dissolved minerals, you can avoid nutrient burn and deficiencies before they impact your yield.\u003c\/p\u003e\u003cp\u003eThis professional-grade meter is part of the renowned \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/hm-digital\"\u003eHM Digital\u003c\/a\u003e lineup, known for precision and durability in hydroponic environments. Unlike basic testers, the AquaPro features simultaneous temperature and TDS readouts on a large, easy-to-read screen, allowing for faster adjustments. For those requiring even more comprehensive data, including pH levels, you might consider upgrading to the \u003ca href=\"\/products\/hm-digital-pro-com-300-ph-tds-ec-temp-meter\"\u003eHM Digital Pro COM-300 pH TDS EC Temp Meter\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eDesigned for the rigors of the grow room, the AquaPro is housed in a water-resistant casing and utilizes one-button digital calibration for hassle-free maintenance. It is an essential tool for any serious gardener looking to master their \u003ca href=\"https:\/\/www.trimleaf.com\/blogs\/Articles\/cannabis-nutrients-101-what-you-need-to-know\"\u003ecannabis nutrients\u003c\/a\u003e and maintain superior water quality throughout the growing cycle.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHM Digital AquaPro TDS\/Temp Meter\u003c\/li\u003e\n\u003cli\u003e1 x 3V Button Cell Battery (Model CR2032)\u003c\/li\u003e\n\u003cli\u003eRetail Friendly Packaging\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 200px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⏱️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eSimultaneous Readings\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eGet simultaneous readouts of TDS and temperature for faster, more accurate water analysis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📺\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eLarge Display Screen\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eThe high-contrast screen makes spot checks easy to read, even in bright grow room conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚙️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eDigital Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eEasily calibrate your device with the push of a button to ensure consistent, professional accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eWater-Resistant\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eFeatures a durable, water-resistant housing designed to withstand the humidity of gardening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0-5000 ppm (mg\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0-80 °C; 32-176 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1 °C\/F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC-to-TDS Conversion\u003c\/td\u003e\n\u003ctd\u003eNaCl (avg. 0.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eDigital push button\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eWater-resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003e1 x 3V CR2032 (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e15 x 2.8 x 1.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I calibrate the HM Digital AquaPro?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe AquaPro features digital calibration. Simply press the calibration button while the meter is in a known calibration solution to sync the device for accurate readings.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes this meter measure electrical conductivity (EC)?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThis specific model is a TDS and Temperature meter. For EC measurements, we recommend the \u003ca href=\"\/products\/hm-digital-pen-style-com-80-tds-ec-temp-meter\"\u003eHM Digital Pen Style COM-80 TDS EC Temp Meter\u003c\/a\u003e or the professional \u003ca href=\"\/products\/hm-digital-pro-com-100-tds-ec-temp-meter\"\u003eCOM-100\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the AquaPro fully waterproof?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt is water-resistant, meaning it can handle splashes and damp hands typical of a hydroponic environment, but it should not be fully submerged in water.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat type of battery does it use?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe meter uses a single 3V button cell (CR2032), which is included with your purchase.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan it display temperature in Fahrenheit?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the AquaPro can toggle between Celsius (0-80 °C) and Fahrenheit (32-176 °F) for your convenience.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818285990104,"sku":"HM-AP-1","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/HMDigital_AquaPro_TDS_TempMeter.jpg?v=1779303217"},{"product_id":"hm-digital-pro-com-100-tds-ec-temp-meter","title":"HM Digital Pro COM-100 TDS EC Temp Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital Pro COM-100 TDS EC Temp Meter\u003c\/h2\u003e\u003cp\u003eMaintaining the perfect nutrient balance is critical for a successful harvest, yet many growers struggle with inconsistent readings and complex tools. The HM Digital Pro COM-100 TDS EC Temp Meter eliminates the guesswork, providing professional-grade precision in a rugged, pen-sized format. Whether you are managing a commercial facility or a home garden, this meter is the gold standard for monitoring water quality and nutrient strength.\u003c\/p\u003e\u003cp\u003eThis versatile device measures Electrical Conductivity (EC), Total Dissolved Solids (TDS), and temperature simultaneously. For growers who require even more comprehensive data, including pH levels, we recommend the \u003ca href=\"\/products\/hm-digital-pro-com-300-ph-tds-ec-temp-meter\"\u003eHM Digital Pro COM-300 pH TDS EC Temp Meter\u003c\/a\u003e. The COM-100 is engineered for durability and ease of use, featuring digital calibration and a large, easy-to-read LCD screen that ensures you get the right data every time.\u003c\/p\u003e\u003cp\u003eAs a staple in the \u003ca href=\"\/collections\/hm-digital\"\u003eHM Digital\u003c\/a\u003e lineup, this meter is built to withstand the humid conditions of a grow room. It integrates seamlessly into your \u003ca href=\"\/collections\/grow-supplies\"\u003egrow supplies\u003c\/a\u003e toolkit, allowing for rapid testing of reservoirs and runoff. For those looking for a more entry-level solution for basic TDS testing, the \u003ca href=\"\/products\/hm-digital-pen-style-com-80-tds-ec-temp-meter\"\u003eHM Digital Pen Style COM-80 TDS EC Temp Meter\u003c\/a\u003e is an excellent alternative.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHM Digital Pro COM-100 TDS EC Temp Meter\u003c\/li\u003e\n\u003cli\u003eProtective Cap\u003c\/li\u003e\n\u003cli\u003e2 x AAA Batteries\u003c\/li\u003e\n\u003cli\u003eUser Manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 240px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📊\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eSimultaneous Readings\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eMeasures EC, TDS, and temperature levels simultaneously for efficient water testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔘\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eDigital Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eOne-button automatic calibration ensures you maintain professional accuracy at all times.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📺\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eLarge LCD Display\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eA high-contrast digital display ensures measurements are easy to read in any environment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eBattery-Operated\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003ePowered by two AAA batteries with an auto-shutoff feature to maximize energy efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eIP-67 Waterproof\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eFully waterproof housing that is submersible and floats for safe use in deep reservoirs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0 – 9990 µS; 0 – 9.99 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0-55 °C; 32-130°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.1 µS\/ppm (0-99); 1 µS\/ppm (100-999); 10 µS\/ppm (1000-9990)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Factor\u003c\/td\u003e\n\u003ctd\u003eNon-linear conversions for KCl, 442TM or NaCl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe\u003c\/td\u003e\n\u003ctd\u003eDetachable platinum electrodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eIP-67 Waterproof (submersible; floats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003e2 x AAA Batteries (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e18.5 x 3.4 x 3.4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe HM Digital Pro COM-100 is backed by a manufacturer's warranty covering defects in materials and workmanship. Please contact HM Digital or your authorized retailer for specific terms and claim procedures.\u003c\/p\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is the difference between EC and TDS?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eEC (Electrical Conductivity) measures the water's ability to conduct electricity, which is directly related to the concentration of dissolved nutrients. TDS (Total Dissolved Solids) is a calculation of the total weight of dissolved solids, often converted from the EC reading using a specific scale (like 0.5 or 0.7).\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often should I calibrate the COM-100?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eFor best results, calibrate your meter once a month or before taking critical measurements. Frequent calibration ensures the sensors remain accurate, especially if you are testing high-concentration nutrient solutions.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the COM-100 probe replaceable?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the COM-100 features detachable platinum electrodes, allowing you to replace the sensor probe without having to purchase an entirely new digital meter.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan this meter be used for saltwater aquariums?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the COM-100 is suitable for a wide range of water testing applications, including hydroponics, water purification, and aquaculture, provided the levels fall within the meter's specified range.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does the IP-67 rating mean?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eAn IP-67 rating means the meter is completely dust-tight and can be submerged in water up to 1 meter deep for 30 minutes. It is also designed to float if dropped in a reservoir.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818293919960,"sku":"HM-COM-100","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-pro-series-pen-style-tds-ec-temp-meter-39347433242840.jpg?v=1733806039"},{"product_id":"hm-digital-pro-com-300-ph-tds-ec-temp-meter","title":"HM Digital Pro COM-300 pH TDS EC Temp Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital Pro COM-300 pH TDS EC Temp Meter\u003c\/h2\u003e\u003cp\u003eMaintaining precise water quality is the cornerstone of a successful harvest. The \u003cstrong\u003eHM Digital Pro COM-300\u003c\/strong\u003e is a professional-grade, multi-parameter meter designed to give hydroponic growers and laboratory technicians absolute control over their nutrient solutions. By tracking pH, EC, TDS, salinity, and temperature in one portable device, you can ensure your plants are always in the optimal environment for growth.\u003c\/p\u003e\u003cp\u003eCompared to other models like the \u003ca href=\"\/products\/hm-digital-pro-com-100-tds-ec-temp-meter\"\u003eHM Digital Pro COM-100\u003c\/a\u003e, the COM-300 adds critical pH monitoring capabilities, making it a truly all-in-one solution. This waterproof device features a large, easy-to-read LCD screen and digital calibration for professional accuracy. Whether you are managing a complex \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/digital-meters\"\u003ehydroponic system\u003c\/a\u003e or conducting sensitive lab tests, this meter provides the reliability you need.\u003c\/p\u003e\u003cp\u003eAs part of the world-renowned \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/hm-digital\"\u003eHM Digital collection\u003c\/a\u003e, the COM-300 is built for durability with an IP-67 waterproof rating and replaceable sensors. For growers who only require specific measurements, we also offer the \u003ca href=\"\/products\/hm-digital-pro-ph-200-ph-temp-meter\"\u003eHM Digital Pro PH-200\u003c\/a\u003e for dedicated pH testing. Elevate your gardening precision with a tool that combines five essential metrics into a single, rugged handheld unit.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHM Digital Pro COM-300 Meter\u003c\/li\u003e\n\u003cli\u003e2 x AAA Batteries\u003c\/li\u003e\n\u003cli\u003eLanyard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 200px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌍\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eVariable Applications\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003ePerfect for testing water in hydroponics, water treatment, and laboratory usage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📱\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eEasy to Read\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eLarge LCD screen makes checking your parameters quick and effortless.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🍃\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eEnergy-Saving\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eAutomatic shut-off feature preserves battery life when the meter is idle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eBattery Operated\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eRuns conveniently on a pair of standard AAA batteries for maximum portability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0 – 14 pH (0.1 pH resolution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0 – 9990 µS; 0 – 9.99 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0-55 °C; 32-130°F (0.1 °C\/°F resolution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Factor\u003c\/td\u003e\n\u003ctd\u003eNon-linear for KCl, 442TM, or NaCl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe\u003c\/td\u003e\n\u003ctd\u003eDetachable platinum electrodes \u0026amp; pH glass sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eIP-67 Waterproof (submersible and floats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003e2 x AAA (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e101.5g (3.6 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat parameters does the COM-300 measure?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe COM-300 is a 5-in-1 tool that measures pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity, and Temperature.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the COM-300 waterproof?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, it is IP-67 rated, meaning it is fully waterproof, submersible, and designed to float if dropped into a reservoir.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I replace the sensor on this meter?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the COM-300 features replaceable sensors, allowing you to maintain the unit for years without needing to replace the entire device.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes it come with everything needed to start?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe package includes the meter and 2 x AAA batteries. For pH testing, we recommend having calibration solutions on hand to ensure ongoing accuracy.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is the difference between this and the COM-100?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe COM-300 includes pH measurement capabilities, whereas the COM-100 only measures EC, TDS, and Temperature.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818303062232,"sku":"HM-COM-300","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-pro-series-pen-style-ph-tds-ec-temp-meter-39347439894744.jpg?v=1733806043"},{"product_id":"hm-digital-pen-style-com-80-tds-ec-temp-meter","title":"HM Digital Pen Style COM-80 TDS EC Temp Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital Pen Style COM-80 TDS EC Temp Meter\u003c\/h2\u003e\u003cp\u003eMaintaining the perfect nutrient balance is critical for any successful grow, yet many hobbyists struggle with inconsistent readings and complex calibration. The \u003cstrong\u003eHM Digital Pen Style COM-80 TDS EC Temp Meter\u003c\/strong\u003e solves this by providing a professional-grade, highly accurate solution that is both affordable and incredibly easy to use. Whether you are monitoring hydroponic reservoirs or testing tap water, this meter ensures your plants receive exactly what they need to thrive.\u003c\/p\u003e\u003cp\u003eThis versatile tool allows you to measure Electrical Conductivity (EC), Total Dissolved Solids (TDS), and temperature simultaneously, giving you a complete picture of your water quality in seconds. For growers looking for a complete testing suite, pairing this with the \u003ca href=\"\/products\/hm-digital-ph-80-ph-temp-meter\"\u003eHM Digital PH-80 pH Temp Meter\u003c\/a\u003e allows for full control over your water chemistry. If you require even higher precision or professional-grade durability for commercial applications, consider upgrading to the \u003ca href=\"\/products\/hm-digital-pro-com-100-tds-ec-temp-meter\"\u003eHM Digital Pro COM-100 TDS EC Temp Meter\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eDesigned by \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/hm-digital\"\u003eHM Digital\u003c\/a\u003e, the COM-80 features a sleek, water-resistant housing and a large LCD for clear visibility in any environment. With its one-touch digital calibration and automatic temperature compensation, you can spend less time fiddling with equipment and more time focusing on your harvest. It is the ideal entry-point for anyone serious about \u003ca href=\"https:\/\/www.trimleaf.com\/blogs\/Articles\/cannabis-nutrients-101-what-you-need-to-know\"\u003ecannabis nutrients\u003c\/a\u003e and water management.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1 x HM Digital COM-80 TDS\/EC\/Temp Meter\u003c\/li\u003e\n\u003cli\u003e3 x 1.5V Button Cell Batteries (LR44)\u003c\/li\u003e\n\u003cli\u003eProtective Cap\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 200px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📊\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eSimultaneous Readings\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eMeasures EC, TDS, and temperature levels at the same time for fast analysis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔘\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eDigital Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eFeatures one-touch automatic calibration for consistently accurate nutrient readings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🖥️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eLarge LCD\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eThe compact frame holds a large display to ensure you get correct measurements every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eBattery-Operated\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eEnjoy up to 1000 hours of battery life with standard LR44 button cell batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0 – 9990 µS; 0 – 9.9 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 – 5000 ppm (0.5 Scale); 0-8560 ppm (0.7 Scale)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e1-80 °C; 33-176 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1 µS\/ppm; 0.1 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemp. Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1 °C\/F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower source\u003c\/td\u003e\n\u003ctd\u003e3 x 1.5V button cell batteries (LR44 included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e53.9g (1.9 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eHM Digital products are covered by a manufacturer's warranty against defects in materials and workmanship. Please contact support for specific warranty duration and coverage details.\u003c\/p\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often should I calibrate the COM-80?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eFor best results, calibrate your meter once a month or if you suspect inaccurate readings. Frequent use in highly concentrated solutions may require more frequent calibration.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the HM Digital COM-80 waterproof?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe COM-80 is water-resistant, meaning it can handle splashes and brief contact with water, but it should not be fully submerged for extended periods.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan this meter measure pH levels?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNo, the COM-80 is designed specifically for TDS (Total Dissolved Solids), EC (Electrical Conductivity), and temperature. To measure pH, we recommend the HM Digital PH-80.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat type of batteries does it use?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt uses three 1.5V button cell batteries (LR44 or equivalent), which are included with your purchase and provide roughly 1000 hours of usage.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is the difference between the 0.5 and 0.7 TDS scales?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eDifferent regions and nutrient brands use different conversion factors. The COM-80 allows you to read in both scales to ensure compatibility with your specific nutrient chart.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818327769304,"sku":"HM-COM-80","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-pen-style-tds-ec-temp-meter-39347467059416.jpg?v=1733806039"},{"product_id":"hm-digital-hydromaster-hm100-continuous-ph-tds-ec-temp-meter","title":"HM Digital Hydromaster HM100 - Continuous pH TDS EC Temp Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital Hydromaster HM100 - Continuous pH TDS EC Temp Meter\u003c\/h2\u003e\u003cp\u003eMaintaining the perfect nutrient balance in your reservoir can be the difference between a record-breaking harvest and a total crop failure. The \u003cstrong\u003eHM Digital Hydromaster HM100\u003c\/strong\u003e provides the peace of mind every grower needs by offering continuous, real-time monitoring of pH, TDS, EC, and temperature. Whether you are managing a complex hydroponic system or a precise laboratory environment, this meter ensures your water quality never fluctuates outside of the optimal range.\u003c\/p\u003e\u003cp\u003eDesigned for ease of use and long-term reliability, the HM100 allows you to step away from your garden without worry. By providing constant data, it eliminates the guesswork associated with manual testing. For those requiring a more mobile solution, you might also consider the \u003ca href=\"\/products\/hm-digital-hydromaster-hm200-portable-ph-tds-ec-temp-meter\"\u003eHM Digital Hydromaster HM200 Portable\u003c\/a\u003e, but for permanent reservoir setups, the HM100 is the gold standard in continuous monitoring. If you need advanced commercial features, the \u003ca href=\"\/products\/hm-digital-hydromaster-hm500-continuous-ph-tds-ec-temp-meter\"\u003eHM Digital Hydromaster HM500\u003c\/a\u003e is also available.\u003c\/p\u003e\u003cp\u003eThis professional-grade tool is part of the extensive \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/hm-digital\"\u003eHM Digital collection\u003c\/a\u003e, known globally for accuracy and durability. By integrating this meter into your workflow, you can proactively adjust nutrient levels, prevent pH lockout, and ensure your plants are always feeding at peak efficiency.\u003c\/p\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 240px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔔\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eProgrammable Alerts\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eSet custom high and low notification points to stay informed of any water quality shifts instantly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔄\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eContinuous Monitoring\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eGet round-the-clock data on your reservoir without the need for manual spot checks or interruptions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💾\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eMemory Storage\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eEasily store and review up to six measurement readings to track and analyze trends in your system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📺\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eLarge LCD Display\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eThe oversized, backlit screen makes it simple to read your levels even from a distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎛️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eDigital Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eSimple push-button calibration ensures your meter stays accurate with minimal maintenance effort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛠️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eReplaceable Probes\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eExtend the life of your device with easy-to-install replacement pH and EC sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eParameters\u003c\/td\u003e\n\u003ctd\u003epH, TDS, EC, Temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.1 – 14.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0 – 10.00 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 – 9990 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0.0 – 60.0 °C \/ 32.0 – 122.0 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003epH: ± 0.1 pH, Temp: ± 1 °C, TDS\/EC: ± 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.1 pH, 0.1°C, 1 ppm (0-999), 0.01 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003e5V\/1A DC Power Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Cable\u003c\/td\u003e\n\u003ctd\u003e24-inch shielded Coaxial Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.3 x 7.9 x 1.3 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe HM Digital Hydromaster HM100 features a three-year warranty on the monitor unit and a six-month warranty on the pH probe, providing professional-grade support for your investment.\u003c\/p\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I monitor pH and EC at the same time?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the HM100 is a multi-parameter monitor designed to display pH, EC, TDS, and temperature simultaneously on its screen.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do the alerts work?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYou can program high and low set points for any parameter; if the water quality drifts outside these limits, the unit will flash an alert to notify you.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the pH probe replaceable?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the pH probe is fully replaceable, allowing you to maintain the unit's accuracy over years of use without replacing the entire monitor.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes it require batteries for operation?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNo, the HM100 uses a 5V power adapter for continuous operation, ensuring it never shuts off during critical monitoring periods.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs calibration difficult?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNot at all. The HM100 features digital calibration with simple push-buttons, making the process quick and accurate compared to manual trimming.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818355097816,"sku":"HM-HM-100","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-hydromaster-100-continuous-ph-tds-ec-temp-meter-39347518275800.jpg?v=1733806039"},{"product_id":"hm-digital-hydromaster-hm200-portable-ph-tds-ec-temp-meter","title":"HM Digital Hydromaster HM200 Portable - pH TDS EC Temp Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital Hydromaster HM200 Portable - pH TDS EC Temp Meter\u003c\/h2\u003e\u003cp\u003eMaintaining the perfect balance of nutrients and water quality is the difference between a mediocre harvest and a legendary one. The \u003cstrong\u003eHM Digital Hydromaster HM200\u003c\/strong\u003e provides a portable yet powerful solution for monitoring the vital signs of your reservoir. Designed specifically for hydroponic enthusiasts and laboratory precision, this meter ensures your plants are always thriving in their ideal medium by tracking pH, EC, TDS, salinity, and temperature with clinical accuracy.\u003c\/p\u003e\u003cp\u003eThis versatile device bridges the gap between handheld pens and stationary monitors. While the \u003ca href=\"\/products\/hm-digital-hydromaster-hm100-continuous-ph-tds-ec-temp-meter\"\u003eHM Digital Hydromaster HM100\u003c\/a\u003e is excellent for fixed setups, the HM200 offers the flexibility to move between tanks or labs without sacrificing data integrity. You can explore our complete selection of \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/hm-digital\"\u003eHM Digital\u003c\/a\u003e tools to find the perfect match for your scale of operation.\u003c\/p\u003e\u003cp\u003eWith its high-resolution LCD and programmable alert system, the HM200 empowers you to catch fluctuations before they stress your crop. Whether you are managing a complex drip system or a simple deep water culture, having real-time data at your fingertips is essential for professional results. For those seeking even more portability in a handheld format, consider the \u003ca href=\"\/products\/hm-digital-pro-com-300-ph-tds-ec-temp-meter\"\u003eHM Digital Pro COM-300\u003c\/a\u003e as a secondary verification tool.\u003c\/p\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 240px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔔\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eProgrammable Sensors\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eSet custom alerts to notify you immediately when water parameters drift outside your target range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📈\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eContinuous Monitoring\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eKeep a constant eye on your system with sensors designed for round-the-clock water quality tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💾\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eMemory Storage\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eStore up to 20 historical measurement readings to identify trends and optimize your nutrient schedule.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📺\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eEasy to Read\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eThe large, backlit LCD displays three different parameters simultaneously for quick, at-a-glance checks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eEnergy-Saving\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003ePreserve battery life with an intelligent auto-shutoff feature that activates after five minutes of idleness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔌\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eBattery Operated\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eUltimate portability with AA battery power, allowing for easy testing across multiple locations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eParameters\u003c\/td\u003e\n\u003ctd\u003epH, TDS, EC, Temperature, Salinity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.1 – 14.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0.0 – 60.0 °C \/ 32.0 – 122.0 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 – 9990 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0 – 10.00 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.1 pH \/ 0.1°C \/ 1 ppm \/ 0.01 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003epH: ± 0.1 pH, Temp: ± 1 °C, TDS\/EC: ± 2 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eATC\u003c\/td\u003e\n\u003ctd\u003eYes (Automatic Temperature Compensation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003e5V\/1A or AA Batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.3 x 7.9 x 1.3 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10 oz (Body) \/ 5 oz (Probes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat exactly does the HM200 measure?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe HM Digital HM200 is a multi-parameter tool that tracks pH, Total Dissolved Solids (TDS), Electrical Conductivity (EC), Salinity, and Temperature.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan this meter be used for continuous monitoring?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the HM200 features a continuous monitoring mode, allowing you to keep the sensors active for ongoing water quality checks in your reservoir.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes it have an alarm system?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt features programmable alerts that allow you to set specific high and low limits for your water parameters. The device will notify you if levels drift outside these settings.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the sensor cable long enough for deep tanks?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe unit comes equipped with a 24-inch shielded coaxial cable, providing ample reach for most standard hydroponic tanks and laboratory setups.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow many data points can the HM200 store?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe device has built-in memory capable of storing up to 20 individual measurement readings, which is helpful for tracking your system's performance over time.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat type of batteries does it use?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe HM200 is powered by standard AA batteries, making it highly portable. It can also be powered via a 5V\/1A power source for stationary use.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818357293272,"sku":"HM-HM-200","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-hydromaster-portable-ph-tds-ec-temp-39347519226072.jpg?v=1733806040"},{"product_id":"hm-digital-hydromaster-hm500-continuous-ph-tds-ec-temp-meter","title":"HM Digital Hydromaster HM500 - Continuous pH TDS EC Temp Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital Hydromaster HM500 - Continuous pH TDS EC Temp Meter\u003c\/h2\u003e\u003cp\u003ePrecision monitoring is essential for high-yield hydroponics. The \u003cstrong\u003eHM Digital Hydromaster HM500\u003c\/strong\u003e provides a comprehensive, continuous look at your water quality, ensuring your plants always have the perfect nutrient balance. By tracking pH, EC, TDS, and Temperature in real-time, this professional-grade meter eliminates the guesswork and allows for immediate adjustments before problems arise.\u003c\/p\u003e\u003cp\u003eWhether you are managing a commercial facility or a home grow, the HM500 is designed for reliability. It features a large, intuitive touchscreen that makes it easy to toggle between measurement scales like ppm and mS. If you are looking for a more compact option for spot-checking, the \u003ca href=\"\/products\/hm-digital-pro-com-300-ph-tds-ec-temp-meter\"\u003eHM Digital Pro COM-300 pH TDS EC Temp Meter\u003c\/a\u003e offers similar precision in a handheld format. For those needing a simpler continuous setup, the \u003ca href=\"\/products\/hm-digital-hydromaster-hm100-continuous-ph-tds-ec-temp-meter\"\u003eHM Digital Hydromaster HM100\u003c\/a\u003e is also a robust choice.\u003c\/p\u003e\u003cp\u003eAs part of the elite \u003ca href=\"\/collections\/hm-digital\"\u003eHM Digital\u003c\/a\u003e lineup, the Hydromaster series is built to last. The HM500 includes programmable alerts that notify you the moment your parameters drift outside your target range. This proactive approach to reservoir management is what separates hobbyists from professional cultivators, ensuring your environment stays within the optimal range for plant health.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHM500 Hydromaster Monitor\u003c\/li\u003e\n\u003cli\u003eReplaceable pH Probe\u003c\/li\u003e\n\u003cli\u003eEC\/TDS\/Temp Probe\u003c\/li\u003e\n\u003cli\u003eAC Power Adapter\u003c\/li\u003e\n\u003cli\u003eBuilt-in Rechargeable Lithium-Ion Battery\u003c\/li\u003e\n\u003cli\u003eWall Mounting Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 240px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🚨\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eProgrammable Sensors\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eSet custom alerts that notify you when your water parameters drift above or below your target limits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🕒\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eContinuous Monitoring\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eDesigned for round-the-clock usage to provide real-time data on your hydroponic reservoir health.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💾\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eMemory Storage\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eStore up to 20 measurement readings directly on the device to track trends and environmental changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📱\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eTouchscreen Interface\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eA large, responsive touchscreen makes navigating settings and checking readings simple and fast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eEnergy-Saving Mode\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eThe unit automatically shuts down after five minutes of inactivity to preserve battery life and power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔌\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eDual Power Source\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eOperate using the built-in rechargeable battery for portability or plug into AC power for constant use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Scales\u003c\/td\u003e\n\u003ctd\u003epH, Temp (°C, °F), TDS (ppm\/ppt 0.5 \u0026amp; 0.7), EC (mS\/µS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.1 – 14.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0.0 – 80.0 °C \/ 32.0 – 176 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 – 9999 ppm \/ 0 – 10.00 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0 – 9999 µS \/ 0 – 20.00 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003epH: ± 0.1 pH, Temp: ± 1 °C, TDS\/EC: ± 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003eAC 110V – 220V \/ Rechargeable Lithium Ion Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Cable\u003c\/td\u003e\n\u003ctd\u003e24-inch shielded Coaxial Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8 x 4 x 1.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe HM Digital Hydromaster HM500 is backed by a three-year warranty on the monitor body and a six-month warranty on the pH probe, ensuring long-term reliability for your grow operation.\u003c\/p\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan the pH probe be replaced?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the HM500 features a replaceable pH probe, allowing you to maintain the unit's accuracy without replacing the entire monitor.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes it work with 220V power?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the included AC adapter is compatible with both 110V and 220V power sources.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow many readings can the memory store?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe internal memory storage allows you to save up to 20 measurement readings to help you track trends over time.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the monitor waterproof?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eWhile the probes are designed for continuous submersion, the monitor unit itself should be mounted in a dry location away from direct water contact.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often should I calibrate the probes?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eFor the highest precision, we recommend calibrating your probes at least once a month using standard calibration solutions.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818362896600,"sku":"HM-HM-500","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-hydromaster-500-continuous-ph-tds-ec-temp-meter-39347523485912.jpg?v=1733806041"},{"product_id":"hm-digital-waterproof-professional-series-meter-kit","title":"HM Digital Waterproof Professional Series Meter Kit","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital Waterproof Professional Series Meter Kit\u003c\/h2\u003e\u003cp\u003ePrecision is the backbone of any successful hydroponic harvest. Monitoring nutrient levels and pH balance shouldn't be a guessing game, but many hobbyists struggle with inconsistent readings or damaged equipment. The \u003cstrong\u003eHM Digital Waterproof Professional Series Meter Kit\u003c\/strong\u003e provides a comprehensive, professional-grade solution for growers who demand accuracy and durability in their water testing routine.\u003c\/p\u003e\u003cp\u003eThis all-in-one kit bundles the high-performance \u003ca href=\"\/products\/hm-digital-pro-ph-200-ph-temp-meter\"\u003eHM Digital Pro PH-200 pH Temp Meter\u003c\/a\u003e and the \u003ca href=\"\/products\/hm-digital-pro-com-100-tds-ec-temp-meter\"\u003eHM Digital Pro COM-100 TDS EC Temp Meter\u003c\/a\u003e, ensuring you have the precise data needed to optimize your nutrient solution. By maintaining the perfect balance, you ensure your plants can absorb the necessary elements for vigorous growth and heavy yields.\u003c\/p\u003e\u003cp\u003eBeyond just the meters, this kit includes essential calibration buffers and storage solutions to maintain sensor longevity and peak performance. Everything is housed in a rugged, waterproof carrying case, making it the ultimate mobile testing station for your garden, farm, or laboratory. For more specialized tools, explore the full \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/hm-digital\"\u003eHM Digital collection\u003c\/a\u003e for all your water testing needs.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1) HM-PH-200 Meter (HM Digital Pro Series Pen style pH\/Temp meter)\u003c\/li\u003e\n\u003cli\u003e1) HM-COM-100 Meter (HM Digital Pro Series Pen style TDS\/EC\/Temp meter)\u003c\/li\u003e\n\u003cli\u003e3) HM-PH-4 Buffer Solution (20ml)\u003c\/li\u003e\n\u003cli\u003e3) HM-PH-7 Buffer Solution (20ml)\u003c\/li\u003e\n\u003cli\u003e3) HM-CP-1000 Solution (20ml)\u003c\/li\u003e\n\u003cli\u003e3) HM-PH-STOR Solution (20ml)\u003c\/li\u003e\n\u003cli\u003e2) Lanyards\u003c\/li\u003e\n\u003cli\u003e3) Solution Cups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 200px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛠️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eAll-in-One Solution\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eA complete toolkit designed for water analysis in hydroponic systems, providing everything you need in one package.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eCOM-100 TDS\/EC Meter\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eGet lab-quality readings for TDS and Electrical Conductivity to manage your \u003ca href=\"https:\/\/www.trimleaf.com\/blogs\/Articles\/cannabis-nutrients-101-what-you-need-to-know\"\u003ecannabis nutrients\u003c\/a\u003e effectively.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🧪\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003ePH-200 pH Meter\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eEnsure your root zone is in the perfect range with high-accuracy pH monitoring for optimal nutrient uptake.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛡️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eWaterproof Storage\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eKeep your sensitive electronics safe from spills and humidity with the included heavy-duty waterproof storage pouch.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Meters\u003c\/td\u003e\n\u003ctd\u003ePH-200 and COM-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0 - 14.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0 - 9990 µS; 0 - 9.99 mS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 - 8560 ppm (0.7 scale); 0 - 5000 ppm (0.5 scale)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd\u003eIP-67 Waterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eDigital Automatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe HM Digital Professional Series meters are covered by a 1-year limited manufacturer's warranty against defects in materials and workmanship.\u003c\/p\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat specific meters are included in this kit?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThis kit includes the PH-200 (Professional pH and Temperature Meter) and the COM-100 (Professional TDS, EC, and Temperature Meter).\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eAre the meters themselves waterproof?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, both the PH-200 and COM-100 are IP-67 waterproof rated, and the kit comes with an additional waterproof carrying case for storage.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the kit include calibration solutions?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the kit includes multiple 20ml packets of pH 4.0, pH 7.0, and 1000 ppm TDS calibration solutions to ensure your meters stay accurate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhy is pH storage solution included?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003epH probes must remain moist to function correctly. The included storage solution prevents the sensor from drying out, which extends the life of the meter.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan these meters be used for salt water?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, these professional-grade meters are designed for various water testing applications, including hydroponics, pools, spas, and reef tanks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818389569752,"sku":"HM-HPK-1","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-com-100-ph-200-protective-case-solutions-39347571753176.jpg?v=1733806045"},{"product_id":"hm-digital-pro-ph-200-ph-temp-meter","title":"HM Digital Pro PH-200 pH Temp Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital Pro PH-200 pH Temp Meter\u003c\/h2\u003e\u003cp\u003eInaccurate pH levels can be the silent killer of any garden, leading to nutrient lockout and stunted growth. The \u003cstrong\u003eHM Digital Pro PH-200\u003c\/strong\u003e provides a professional-grade solution, offering one of the most compact and highly accurate pH readers and water thermometers available to growers today. Whether you are managing a complex hydroponic reservoir or a simple soil-based setup, having precise data at your fingertips is essential for maintaining plant health.\u003c\/p\u003e\u003cp\u003eThis professional-series meter features a large, easy-to-read LCD screen that displays pH and temperature levels simultaneously. With its automatic digital calibration and Automatic Temperature Compensation (ATC), the PH-200 removes the guesswork from your water testing routine. For those who require comprehensive monitoring, you might also consider the \u003ca href=\"\/products\/hm-digital-pro-com-300-ph-tds-ec-temp-meter\"\u003eHM Digital Pro COM-300 pH TDS EC Temp Meter\u003c\/a\u003e for all-in-one testing, or the \u003ca href=\"\/products\/hm-digital-pro-com-100-tds-ec-temp-meter\"\u003eHM Digital Pro COM-100 TDS EC Temp Meter\u003c\/a\u003e for dedicated conductivity measurements.\u003c\/p\u003e\u003cp\u003eBuilt for durability in wet environments, the PH-200 is fully waterproof and even floats if accidentally dropped into your tank. It is an ideal tool for a wide variety of applications beyond gardening, including aquariums, swimming pools, and laboratory testing. Explore the full range of \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/hm-digital\"\u003eHM Digital\u003c\/a\u003e products to ensure every aspect of your water quality is perfectly tuned for success.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHM Digital PH-200 Meter\u003c\/li\u003e\n\u003cli\u003eProtective Cap\u003c\/li\u003e\n\u003cli\u003eLanyard\u003c\/li\u003e\n\u003cli\u003e2 x AAA Batteries\u003c\/li\u003e\n\u003cli\u003epH 7.0 Buffer (Start-up pack)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex: 0 1 240px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📊\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eSimultaneous Readings\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eView pH and temperature levels at the same time on the high-contrast LCD screen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔘\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eAuto-Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eOne-touch digital calibration ensures your meter stays accurate without manual adjustment screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eWaterproof Design\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eIP-67 rated housing is completely submersible and designed to float if dropped in water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eATC Technology\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eAutomatic Temperature Compensation ensures precise pH readings regardless of water temperature.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eBattery Efficient\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eUses standard AAA batteries with an auto-off function to maximize your power life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0 – 14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0-55 °C; 32-130 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.01 pH; 0.1 °C\/F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.1 pH; +\/- 1% Temp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum EC\/TDS\u003c\/td\u003e\n\u003ctd\u003e5 uS \/ 10 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eIP-67 Waterproof (Submersible \u0026amp; Floats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003e2 x AAA Batteries (Included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e18.5 x 3.4 x 3.4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e96.4 g (3.4 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe HM Digital PH-200 is backed by a manufacturer's warranty covering defects in materials and workmanship, ensuring reliable performance for your critical water testing needs. The sensor is replaceable to extend the life of your unit.\u003c\/p\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cstyle\u003e.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\u003c\/style\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often should I calibrate the PH-200?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eFor best results, we recommend calibrating your meter at least once a month or if you notice inconsistent readings. If you use it daily, weekly calibration is ideal.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the pH sensor replaceable?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the PH-200 features a replaceable glass sensor. This allows you to keep the meter for years by simply swapping out the electrode when it reaches the end of its lifespan.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use this for both soil and water?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThis meter is designed for liquid testing. To test soil pH, you should create a slurry of soil and distilled water to get an accurate reading.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes this meter measure TDS or EC?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNo, the PH-200 is dedicated to pH and temperature. For TDS and EC, we recommend the \u003ca href=\"\/products\/hm-digital-pro-com-100-tds-ec-temp-meter\"\u003eHM Digital Pro COM-100\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the unit completely waterproof?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, it features an IP-67 waterproof rating, meaning it is fully submersible and will float if dropped into a reservoir or pool.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818391929048,"sku":"HM-PH-200","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-pro-series-pen-style-ph-temp-meter-39347575390424.jpg?v=1733806041"},{"product_id":"hm-digital-tds-3-tds-temp-meter-with-case","title":"HM Digital TDS-3 TDS Temp Meter with Case","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eHM Digital TDS-3 TDS Temp Meter with Case\u003c\/h2\u003e\u003cp\u003eMonitoring water quality is essential for successful cultivation, yet many growers struggle with inconsistent readings that lead to nutrient imbalances. The **HM Digital TDS-3 TDS Temp Meter** provides a professional-grade solution in a portable, pen-sized design. By accurately measuring Total Dissolved Solids (TDS) and temperature, this meter allows you to maintain the perfect environment for your plants, ensuring they receive exactly what they need for vigorous growth.\u003c\/p\u003e\u003cp\u003eBuilt for reliability and ease of use, the TDS-3 is a staple for water purification, hydroponics, and home gardening. For growers who need to monitor more than just TDS, this device pairs perfectly with other \u003ca href=\"https:\/\/www.trimleaf.com\/collections\/hm-digital\"\u003eHM Digital\u003c\/a\u003e tools. If your setup requires multi-parameter testing, consider the \u003ca href=\"\/products\/hm-digital-pro-com-300-ph-tds-ec-temp-meter\"\u003eHM Digital Pro COM-300 pH TDS EC Temp Meter\u003c\/a\u003e or the \u003ca href=\"\/products\/hm-digital-hydromaster-hm200-portable-ph-tds-ec-temp-meter\"\u003eHM Digital Hydromaster HM200 Portable - pH TDS EC Temp Meter\u003c\/a\u003e for comprehensive nutrient management.\u003c\/p\u003e\u003cp\u003eThis durable meter features Automatic Temperature Compensation (ATC) to ensure accuracy regardless of water temperature. With its long-lasting battery life and included carrying case, the TDS-3 is designed to be the most dependable tool in your grow room for years to come.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHM Digital TDS-3 TDS Temp Meter\u003c\/li\u003e\n\u003cli\u003eTwo 1.5V button cell batteries (LR44 or equivalent)\u003c\/li\u003e\n\u003cli\u003eBlack vinyl carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 200px;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📊\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eSimultaneous Readings\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eMeasures TDS and temperature levels at once for complete water quality analysis in one view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛠️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eDigital Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eEasily calibrate via a dedicated slot with a screwdriver to ensure consistent and professional accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📺\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eLarge LCD\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eFeatures a high-contrast display for easy reading of measurements, even in low-light grow environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eBattery-operated\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003ePowered by button cell batteries with up to 1000 hours of continuous use for long-lasting reliability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 – 9990 ppm (mg\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemp. Range\u003c\/td\u003e\n\u003ctd\u003e0 – 80 degrees Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0-999: 1 ppm; 1000-9990: 10 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eATC\u003c\/td\u003e\n\u003ctd\u003eBuilt-in sensor for Automatic Temperature Compensation (1-50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003e2 x 1.5V button cell batteries (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Life\u003c\/td\u003e\n\u003ctd\u003e1000 hours of usage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e15.5 x 3.1 x 2.3 cm (6.1 x 1.25 x 1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe HM Digital TDS-3 is backed by a manufacturer's warranty covering defects in materials and workmanship for a period of one year from the date of purchase.\u003c\/p\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I calibrate the TDS-3 meter?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe TDS-3 is factory calibrated but can be manually adjusted. Use a 342 ppm NaCl solution and a small screwdriver to turn the calibration trimmer located in the hole on the back of the meter until the display matches the solution value.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes this meter measure Electrical Conductivity (EC)?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eWhile the TDS-3 displays readings in ppm (Total Dissolved Solids), it calculates this value based on the electrical conductivity of the water. For direct EC readings, we recommend the HM Digital COM-80.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the TDS-3 waterproof?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe TDS-3 is water-resistant, meaning it can handle splashes, but it should not be fully submerged in liquid beyond the maximum immersion level.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does the 'x10' icon on the screen mean?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eWhen the TDS reading exceeds 999 ppm, a 'x10' icon will appear on the LCD. Multiply the displayed number by 10 to get the actual ppm value.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often should I change the batteries?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eWith a battery life of approximately 1000 hours, most users will only need to replace the two LR44 batteries once every year or two, depending on frequency of use.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":43818392486104,"sku":"HM-TDS-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/hm-digital-hm-digital-pen-style-tds-temp-meter-with-case-39347576373464.jpg?v=1733806041"},{"product_id":"ac-infinity-hydroponic-meter-pro-kit","title":"AC Infinity Hydroponic Meter PRO Kit","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eAC Infinity Hydroponic Meter PRO Kit\u003c\/h2\u003e\u003cp\u003eStruggling to maintain the perfect nutrient balance for your hydroponic garden? Guesswork can lead to stressed plants and disappointing yields. The \u003ca href=\"https:\/\/trimleaf.com\/collections\/ac-infinity\"\u003eAC Infinity\u003c\/a\u003e Hydroponic Meter PRO Kit is your all-in-one solution, designed for meticulous growers who demand precision and durability in their tools.\u003c\/p\u003e\u003cp\u003eThis professional-grade meter delivers laboratory-grade accuracy for five critical parameters: pH, EC, TDS, temperature, and salinity. By providing precise control over your water quality and nutrient uptake, it ensures your plants receive exactly what they need to thrive. Featuring a rugged, IP67 waterproof design and a replaceable sensor probe to reduce long-term costs, this kit is one of the most reliable \u003ca href=\"https:\/\/trimleaf.com\/collections\/digital-meters\"\u003edigital meters\u003c\/a\u003e available for growers, hobbyists, and professionals alike.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1x pH Meter\u003c\/li\u003e\n\u003cli\u003e1x pH 4.00 Calibration Buffer Solution\u003c\/li\u003e\n\u003cli\u003e1x pH 7.00 Calibration Buffer Solution\u003c\/li\u003e\n\u003cli\u003e1x 3M KCL Soaking Solution\u003c\/li\u003e\n\u003cli\u003e1x pH 4.00 Calibration Vial\u003c\/li\u003e\n\u003cli\u003e1x pH 7.00 Calibration Vial\u003c\/li\u003e\n\u003cli\u003e1x Travel Lanyard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.image-gallery-container{width:100%;overflow:hidden;margin:20px 0;}.image-gallery{display:grid;grid-template-columns:1fr 1fr 1fr;gap:15px;}.gallery-item{aspect-ratio:1;overflow:hidden;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.1);}.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease;}.gallery-item:hover img{transform:scale(1.05);}@media (max-width:768px){.image-gallery{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:10px;padding-bottom:10px;}.gallery-item{flex:0 0 360px;scroll-snap-align:start;}}.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:#ffffff;padding:1.5rem;border-radius:8px;text-align:center;box-sizing:border-box;flex:0 1 200px;}\u003c\/style\u003e\u003cdiv class=\"image-gallery-container\"\u003e\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ACInfinityHydroponicMeterPROKit-Durability_83f7603a-afa6-4b46-b991-64ad054be3c0_480x480.jpg?v=1699303535\" alt=\"AC Infinity Hydroponic Meter PRO Kit being used to test water\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ACInfinityHydroponicMeterPROKit-Testing_9b38bbab-c340-469a-80d8-7cbcf9901cf0_480x480.jpg?v=1699303543\" alt=\"AC Infinity Hydroponic Meter PRO Kit testing aquarium water quality\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ACInfinityHydroponicMeterPROKit-DEsign_2b38de75-796a-41f4-bc4d-b1542d8405c2_480x480.jpg?v=1699303531\" alt=\"AC Infinity Hydroponic Meter PRO Kit close-up of the replaceable probe\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size:2.5em;line-height:1;color:#2c5530;\"\u003e🔬\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eLab-Grade Precision\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eDelivers highly accurate measurements for pH, EC, TDS, temperature, and salinity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size:2.5em;line-height:1;color:#2c5530;\"\u003e⚖️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eIn-Depth Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eIncludes a comprehensive set of calibration solutions to ensure consistent, reliable results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size:2.5em;line-height:1;color:#2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eVersatile Application\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003ePerfect for hydroponics, aquariums, pools, and any application requiring precise water quality control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size:2.5em;line-height:1;color:#2c5530;\"\u003e🔄\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eReplaceable Probe\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eEasily swap out the sensor probe to extend the meter's life and maintain accuracy, reducing long-term costs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;color:#333;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1.65 x 1.30 x 7.01 in. (4.2 x 3.3 x 17.8 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensors\u003c\/td\u003e\n\u003ctd\u003epH, Temperature, EC, TDS, Salinity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Type\u003c\/td\u003e\n\u003ctd\u003eInterchangeable Lithium Glass Membrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.00 - 14.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEC Range\u003c\/td\u003e\n\u003ctd\u003e0.00 - 19.99 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Range\u003c\/td\u003e\n\u003ctd\u003e0 - 9990 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0.1 - 80.0°C (32.2 - 176°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalinity Range\u003c\/td\u003e\n\u003ctd\u003e0.00 - 14.00 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Solutions\u003c\/td\u003e\n\u003ctd\u003e4.00 pH, 7.00 pH, 10.01 pH, 12.88 mS, 1413 µS, KCL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/PMP2305X1_230518_pH_Meter_PRO_Manual.pdf?v=1699302333\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\"\u003e\u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003eAC Infinity Hydroponic Meter PRO Kit Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eFAQs\u003c\/h4\u003e\u003cstyle\u003e.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}.faq-answer ul{margin:10px 0;padding-left:20px;}.faq-answer li{margin-bottom:5px;color:#555;}\u003c\/style\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat parameters does the Hydroponic Meter PRO Kit measure?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThis all-in-one device accurately measures five key water quality parameters: pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), temperature, and salinity.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the probe replaceable?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, it features a high-quality, interchangeable lithium glass membrane probe. This allows you to easily replace the sensor if needed, extending the lifespan of the meter and ensuring long-term accuracy.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often should I calibrate the meter?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eFor the most accurate results, we recommend calibrating the meter before its first use and then periodically based on your usage. If you notice inconsistent readings or are testing different types of solutions frequently, more regular calibration is advised. The kit includes all the necessary buffer and soaking solutions to get you started.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use this meter for my aquarium or swimming pool?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eAbsolutely. While it's designed for hydroponics, its precision and versatility make it an excellent tool for managing water quality in aquariums, pools, spas, and other water systems.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is the waterproof rating of this device?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe Hydroponic Meter PRO Kit has an IP67 waterproof rating, which means it is fully protected against dust and can withstand being submerged in up to 1 meter of water for 30 minutes.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes this meter work with other AC Infinity products?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, this meter is a crucial tool for managing nutrient solutions used in systems like the \u003ca href=\"\/products\/ac-infinity-self-watering-fabric-pot-base-four-pack\"\u003eAC Infinity Self-Watering Fabric Pot Bases\u003c\/a\u003e or within one of their \u003ca href=\"https:\/\/trimleaf.com\/collections\/ac-infinity-grow-tent-kits\"\u003ecomplete grow tent kits\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow can I learn more about setting up a grow environment?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eFor a comprehensive overview of setting up a controlled environment, check out our in-depth guide on \u003ca href=\"https:\/\/trimleaf.com\/blogs\/reviews\/ac-infinity-grow-tents-and-air-filter-kits-in-depth-guide\"\u003eAC Infinity grow tents and air filter kits\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"AC Infinity","offers":[{"title":"Default Title","offer_id":44086348513496,"sku":"AC-PHM7","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ac-infinity-ac-infinity-hydroponic-meter-pro-kit-39887754035416.jpg?v=1733806181"},{"product_id":"active-air-3-way-meter","title":"Active Air 3-Way Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\u003ch2\u003eActive Air 3-Way Meter\u003c\/h2\u003e\u003cp\u003eGuessing your soil conditions wastes nutrients, stunts growth, and costs you yield. The Active Air 3-Way Meter eliminates the guesswork by combining three critical plant health measurements — soil moisture, light intensity, and pH — into a single handheld tool. If you only need to track soil hydration and acidity, the \u003ca href=\"\/products\/active-air-2-way-moisture-ph-meter\"\u003eActive Air 2-Way Moisture\/pH Meter\u003c\/a\u003e is an excellent alternative that works without batteries in any environment.\u003c\/p\u003e\u003cp\u003eMoisture readings register on a scale of 0 (dry) to 10 (moist), light readings span 0 to 2000 LUX, and pH coverage runs from 3.5 to 8. Whether you're dialing in a soil grow or checking outdoor containers, the Active Air 3-Way Meter delivers reliable, at-a-glance readings. To maintain a complete picture of your garden's health, use this tool alongside an \u003ca href=\"\/products\/active-air-hygro-thermometer\"\u003eActive Air Hygro-Thermometer\u003c\/a\u003e to monitor the air temperature and humidity levels surrounding your plants.\u003c\/p\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔬\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e3-in-1 Testing\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eMeasures soil moisture, ambient light intensity, and pH from a single probe insertion — no switching tools between tests.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eNo Batteries Required\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eFully passive operation means no charging, no battery replacement, and no downtime — pick it up and test anytime.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMoisture Scale 0–10\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eGraduated 10-point scale gives a clear dry-to-moist reading so you can water with confidence and avoid overwatering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e☀️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eLight Range 0–2000 LUX\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eCovers low-light to very strong light conditions, helping you position plants or adjust supplemental lighting for optimal growth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🧪\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003epH Range 3.5–8\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eWide pH coverage detects both acidic and alkaline soil imbalances early, before nutrient lockout or deficiency symptoms appear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌿\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eIndoor \u0026amp; Outdoor Use\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eDurable construction handles garden beds, \u003ca href=\"\/products\/active-air-clip-fan-6-15w\"\u003egrow tents\u003c\/a\u003e, and container plants alike — built for everyday use in any growing environment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMoisture Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0 (dry) – 10 (moist)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eLight Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0 – 2000 LUX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003epH Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e3.5 – 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eBattery\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eNone required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDimensions (Unit)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e13.3\" L × 3.8\" W × 1.2\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0.2 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eUse Environment\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eIndoor \/ Outdoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Active Air 3-Way Meter is backed by a \u003cstrong\u003e1-year manufacturer warranty\u003c\/strong\u003e against defects in materials and workmanship.\u003c\/p\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ActiveAir_3-Way_Meter_Instructions.pdf?v=1778792540\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eActive Air 3-Way Meter Instructions\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstyle\u003e.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\u003c\/style\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the Active Air 3-Way Meter need batteries?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNo — the 3-Way Meter is entirely battery-free. It draws the small amount of energy needed for readings directly from the soil through its probe, so there's nothing to charge or replace.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I switch between moisture, light, and pH modes?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe meter uses a selector switch to toggle between its three measurement modes. Insert the probe into the soil, select the desired mode, and read the result directly from the analog display — no calibration step required between modes.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I read the pH scale on the meter?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe pH scale runs from 3.5 to 8, covering the acidic to mildly alkaline range most commonly found in plant-growing media. A reading below 6 generally indicates acidic conditions, while readings above 7 suggest alkalinity — both of which can cause nutrient lockout if left uncorrected.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use this meter in hydroponic growing media like coco or rockwool?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe Active Air 3-Way Meter is designed primarily for soil and standard growing media. Results in inert soilless media like rockwool or pure hydroton may be unreliable, as these substrates don't conduct the ions the probe relies on for pH and moisture readings in the same way soil does.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I maintain the probe to keep readings accurate?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eRemove the probe from the soil after each use and wipe the metal prongs clean with a damp cloth. Leaving the probe inserted in soil between uses can cause oxidation on the contacts, which will degrade reading accuracy over time.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the 3-Way Meter suitable for outdoor garden beds?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes — the meter is built for both indoor and outdoor use. Its durable housing handles garden beds, raised planters, and outdoor containers just as well as grow tents and indoor pots. For comprehensive monitoring in these environments, consider the \u003ca href=\"\/products\/active-air-indoor-outdoor-thermometer-w-hygrometer\"\u003eActive Air Indoor-Outdoor Thermometer w\/Hygrometer\u003c\/a\u003e to track external climate variables.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does the light reading tell me, and how accurate is it?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe light sensor measures ambient light in LUX, ranging from 0 (no light) to 2000 LUX (very strong light). This gives a useful directional indicator for plant placement. If your light readings are high, ensure you have proper ventilation using an \u003ca href=\"\/products\/active-air-6-inline-duct-fan-400-cfm\"\u003eActive Air 6\" Inline Duct Fan\u003c\/a\u003e to manage heat levels.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Active Air","offers":[{"title":"Default Title","offer_id":51686420906200,"sku":"MGMLP1","price":9.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ActiveAir_3-Way_Meter_1.jpg?v=1790965775"},{"product_id":"active-air-2-way-moisture-ph-meter","title":"Active Air 2-Way Moisture\/pH Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eActive Air 2-Way Moisture\/pH Meter\u003c\/h2\u003e\n\u003cp\u003eWhen all you need are the two most critical soil diagnostics, the Active Air 2-Way Moisture\/pH Meter delivers both in a compact, battery-free tool built for everyday growing. To ensure your environment is as balanced as your soil, many growers also track atmospheric conditions with an \u003ca href=\"\/products\/active-air-hygro-thermometer\"\u003eActive Air Hygro-Thermometer\u003c\/a\u003e. Overwatering and pH imbalance are among the most common causes of poor plant performance — this meter puts both readings at your fingertips instantly, with no setup, no charging, and no guesswork.\u003c\/p\u003e\n\u003cp\u003eMoisture readings register on a graduated scale of 0 (dry) to 10 (moist), while pH coverage spans 3 (acidic) to 10 (basic) — a wider alkaline range than most entry-level meters. Durable enough for repeated use in garden beds, containers, and grow tents alike, the Active Air 2-Way Meter is a reliable grab-and-go diagnostic for any soil grower.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔬\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e2-in-1 Testing\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eMeasures both soil moisture and pH from a single probe insertion — no need to switch tools between your two most essential soil checks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eNo Batteries Required\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eFully passive operation with no charging or battery replacement — ready to use whenever you need it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMoisture Scale 0–10\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eGraduated 10-point scale provides a clear dry-to-moist reading so you can time waterings accurately and avoid overwatering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🧪\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eWide pH Range 3–10\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eCovers strongly acidic to basic conditions — a broader alkaline range than many comparable meters — to catch imbalances before they cause nutrient lockout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌿\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eIndoor \u0026amp; Outdoor Use\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eDurable construction handles garden beds, grow tents equipped with \u003ca href=\"\/products\/active-air-wall-mount-fan-16\"\u003eActive Air wall mount fans\u003c\/a\u003e, raised planters, and outdoor containers with equal reliability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e👁️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eEasy-to-Read Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLarge analog dial with clear scale markings delivers at-a-glance readings — no interpretation or digital calibration needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMoisture Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0 (dry) – 10 (moist)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003epH Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e3 (acidic) – 10 (basic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eBattery\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eNone required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDimensions (Unit)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e13.0\" L × 3.8\" W × 1.2\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0.2 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eUse Environment\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eIndoor \/ Outdoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Active Air 2-Way Moisture\/pH Meter is backed by a \u003cstrong\u003e1-year manufacturer warranty\u003c\/strong\u003e against defects in materials and workmanship.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cstyle\u003e\n.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\n\u003c\/style\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is the difference between the 2-Way and 3-Way Active Air meters?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/active-air-3-way-meter\"\u003eActive Air 3-Way Meter\u003c\/a\u003e adds a light intensity reading (0–2000 LUX) on top of moisture and pH, making it the better choice if you also want to monitor your grow light coverage or natural sunlight levels. The 2-Way Meter focuses purely on soil conditions and is ideal if light monitoring isn't a priority.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the 2-Way Meter require batteries?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eNo — the meter is entirely battery-free. It generates the small electrical signal needed for readings through direct contact with the soil, so there's nothing to charge or replace before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I switch between moisture and pH readings?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eUse the selector switch on the meter body to toggle between moisture and pH modes. Insert the probe into your growing media, select the desired mode, and read the result directly from the analog dial — no warm-up or calibration required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhy does the 2-Way Meter have a wider pH range than the 3-Way?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe 2-Way Meter covers pH 3–10, while the 3-Way covers pH 3.5–8. The wider range on the 2-Way makes it slightly more useful in situations where soil may be unusually alkaline — such as certain outdoor or native soils — though most cultivated growing media will fall well within both meters' ranges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I keep the probe accurate over time?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eRemove the probe from the soil after every use and wipe the metal prongs clean with a damp cloth. Leaving the probe inserted between uses causes mineral buildup and oxidation on the contacts, which degrades reading accuracy. Store the meter dry when not in use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use this meter in coco coir or soilless media?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe 2-Way Meter is optimized for soil and peat-based growing media. In inert soilless substrates like dry coco coir, rockwool, or hydroton, readings may be inconsistent because these materials don't hold the ionic charge the probe relies on. For hydroponic or soilless systems, a liquid pH pen is the more reliable tool.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the 2-Way Meter suitable for outdoor garden use?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes — the meter is built for both indoor and outdoor environments. It works equally well in raised garden beds, outdoor containers, and in-ground plantings. Just clean and dry the probe after each use to maintain accuracy and extend the meter's lifespan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Active Air","offers":[{"title":"Default Title","offer_id":51686461309144,"sku":"MGMP1","price":8.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Active_Air2-Way_Moisture_pHMeter_2.jpg?v=1790965776"},{"product_id":"active-air-hygro-thermometer","title":"Active Air Hygro-Thermometer","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eActive Air Hygro-Thermometer\u003c\/h2\u003e\n\u003cp\u003eKnowing your temperature and humidity at a glance — without walking across the room or squinting at a small display — makes a real difference during a grow. The Active Air Hygro-Thermometer delivers both readings simultaneously on a jumbo LCD screen large enough to read from across your workspace, making it an excellent companion to other essential monitoring tools like the \u003ca href=\"\/products\/active-air-3-way-meter\"\u003eActive Air 3-Way Meter\u003c\/a\u003e. The included 3-meter external sensor lets you position the probe exactly where it matters most: at canopy level, inside a tent, or in a remote corner — while the display stays wherever is most convenient for you.\u003c\/p\u003e\n\u003cp\u003eThe unit monitors both indoor and outdoor conditions with automatic display switching between the two, tracks Max and Min memory for historical high and low values, and provides continuous relative humidity and temperature readings without manual cycling between modes. Lightweight and versatile, it can be propped on a shelf, set on a workspace, or wall-mounted for hands-free monitoring throughout your grow cycle.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🖥️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eJumbo LCD Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLarge-number screen is readable from a distance, letting you check conditions at a glance without stopping what you're doing in the grow room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eSimultaneous Temp \u0026amp; Humidity\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eDisplays current temperature and relative humidity at the same time — no toggling between readings to get a complete picture of your environment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔁\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eIndoor \u0026amp; Outdoor Monitoring\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eAuto-switches between indoor and outdoor temperature readings, making it easy to monitor two zones — such as inside a tent and in the ambient room — from one unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e3-Meter External Sensor\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eThe 3-meter temperature probe reaches canopy level, grow tent interiors, or any remote location while keeping the display within easy view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📊\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMax \u0026amp; Min Memory\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eRecords and displays the highest and lowest readings captured since last reset, so you can identify overnight temperature drops or humidity spikes without being present.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📌\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eFlexible Mounting Options\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eProp it on a surface, place it on a workspace, or wall-mount it for hands-free monitoring — adaptable to any grow room layout or workflow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDisplay\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eJumbo LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eSensor Cable Length\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e3 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eReadings\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eTemperature, Relative Humidity (simultaneous)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMemory\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMax \u0026amp; Min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMonitoring Zones\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eIndoor \u0026amp; Outdoor (auto-switch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMounting\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eFreestanding or wall-mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDimensions (Unit)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e9.0\" L × 5.0\" W × 1.3\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0.25 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\n\u003ca style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ActiveAir_HygroThermometer_Instructions.pdf?v=1778796388\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eActive Air Hygro-Thermometer Instructions\u003c\/span\u003e \u003c\/a\u003e \u003ca style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ActiveAir_HygroThermometer_MSDS.pdf?v=1778796360\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eActive Air Hygro-Thermometer MSDS\u003c\/span\u003e \u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cstyle\u003e\n.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\n\u003c\/style\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is the 3-meter sensor used for?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe 3-meter external probe allows you to place the temperature sensor exactly where you need accurate readings — at canopy level inside a grow tent, near a root zone, or in a separate room — while keeping the display unit in a visible, convenient location. This is particularly useful when monitoring conditions inside a sealed tent equipped with an \u003ca href=\"\/products\/active-air-6-inline-duct-fan-400-cfm\"\u003eActive Air 6 inch Inline Duct Fan\u003c\/a\u003e from the outside.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does the Max\/Min memory function record?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe Max\/Min memory stores the highest and lowest temperature and humidity readings captured since the last manual reset. This lets you review environmental extremes without being present — critical for catching humidity spikes that indicate you may need to deploy an \u003ca href=\"\/products\/active-air-dehumidifier-110-pint\"\u003eActive Air Dehumidifier - 110 Pint\u003c\/a\u003e to protect your plants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow does the indoor\/outdoor switching work?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe unit auto-switches its display between indoor and outdoor temperature readings — effectively letting you monitor two separate zones simultaneously using the built-in sensor (indoor) and the 3-meter external probe (outdoor or remote). This makes it easy to compare conditions inside a grow tent against the ambient room without a second device.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan this unit be wall-mounted?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes — the hygro-thermometer supports wall mounting for hands-free placement, similar to how you would position an \u003ca href=\"\/products\/active-air-wall-mount-fan-16\"\u003eActive Air 16 inch Wall Mount Fan\u003c\/a\u003e to maximize vertical space. Wall mounting keeps your workspace clear while maintaining constant visibility of your readings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the unit display both Fahrenheit and Celsius?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003ePlease refer to the included instruction manual (linked above) for full details on temperature unit selection. Most hygro-thermometers in this category offer a toggle between °F and °C — the manual will confirm the exact method for switching display units on this model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat batteries does the Active Air Hygro-Thermometer use?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eBattery type and quantity are detailed in the instruction manual linked in the Support \u0026amp; Manuals section above. At 0.25 lbs shipping weight, the unit takes standard small-format batteries — consult the manual for the exact specification before your first setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Active Air","offers":[{"title":"Default Title","offer_id":51686474678488,"sku":"HGIOHTJ","price":12.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ActiveAir_Hygro_Thermometer.jpg?v=1790965775"},{"product_id":"active-air-indoor-outdoor-thermometer-w-hygrometer","title":"Active Air Indoor-Outdoor Thermometer w\/Hygrometer","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\u003ch2\u003eActive Air Indoor-Outdoor Thermometer w\/Hygrometer\u003c\/h2\u003e\u003cp\u003eManaging two environmental zones — a grow tent and the surrounding room, or two separate grow spaces — typically means two separate meters. The Active Air Indoor-Outdoor Thermometer w\/Hygrometer consolidates both into a single compact unit, using a 3-meter remote probe to capture temperature in one location while the onboard sensor monitors the immediate environment. Pairing this monitoring tool with an \u003ca href=\"\/products\/active-air-10-inline-duct-fan-760-cfm\"\u003eActive Air 10\" Inline Duct Fan - 760 CFM\u003c\/a\u003e ensures you can act on the temperature data by exhausting excess heat from the tent. Current temperature and humidity display simultaneously, with Max and Min memory recording the extreme values for both metrics so you can review overnight or lights-off conditions without being present.\u003c\/p\u003e\u003cp\u003eBuilt from sturdy materials suited to the demands of a grow room environment, the unit adds an alarm clock function with both 12-hour and 24-hour modes — a practical addition for growers managing timed feeding, lighting checks, or harvest schedules. The large display keeps all readings readable at a glance, and at under 0.3 lbs, it's light enough to move wherever your monitoring needs take it. For growers also monitoring root zone conditions, this device complements the \u003ca href=\"\/products\/active-air-3-way-meter\"\u003eActive Air 3-Way Meter\u003c\/a\u003e for a comprehensive environmental overview.\u003c\/p\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eDual-Zone Temperature Monitoring\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eMonitors two temperature locations simultaneously — the onboard sensor covers the immediate area while the 3-meter remote probe reaches a tent interior, canopy level, or separate room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eOnboard Humidity Sensor\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eRelative humidity sensor is built into the side of the unit for continuous indoor RH monitoring alongside temperature — no separate hygrometer needed. It provides the data necessary to determine if you need to activate an \u003ca href=\"\/products\/active-air-commercial-humidifier-75-pint\"\u003eActive Air Commercial Humidifier - 75 Pint\u003c\/a\u003e to increase moisture levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e3-Meter Remote Probe\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eThe 3-meter temperature probe reaches into grow tents, behind equipment, or into adjacent spaces while keeping the display unit in a convenient, visible location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📊\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMax \u0026amp; Min Memory\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eRecords high and low points for both temperature and humidity, letting you review environmental extremes from lights-off periods or overnight without manual monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⏰\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e12\/24-Hour Alarm Clock\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBuilt-in alarm clock with selectable 12 or 24-hour display — useful for scheduled feeding reminders, lighting checks, or any time-sensitive grow room tasks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🖥️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eLarge Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSpacious screen displays current temperature and humidity readings in a large, easy-to-read format — all key data visible at a glance from across the room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eReadings\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eTemperature (indoor \u0026amp; outdoor), Relative Humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eHumidity Sensor Location\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eSide of unit (onboard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eRemote Probe Cable Length\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e3 meters (temperature only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMemory\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMax \u0026amp; Min (temperature and humidity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eAlarm Clock\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e12-hour and 24-hour modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDimensions (Unit)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e8.8\" L × 3.8\" W × 0.7\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0.29 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Active Air Indoor-Outdoor Thermometer w\/Hygrometer is backed by a \u003cstrong\u003e1-year manufacturer warranty\u003c\/strong\u003e against defects in materials and workmanship.\u003c\/p\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\n\u003ca style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ActiveAir_HGIOHT_Instructions.pdf?v=1778796911\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eActive Air Indoor-Outdoor Thermometer Instructions\u003c\/span\u003e \u003c\/a\u003e \u003ca style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ActiveAir_HGIOHT_MSDS.pdf?v=1778796911\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eActive Air Indoor-Outdoor Thermometer MSDS\u003c\/span\u003e \u003c\/a\u003e\n\u003c\/div\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstyle\u003e.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\u003c\/style\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is the difference between this unit and the Active Air Hygro-Thermometer?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eBoth units monitor temperature and humidity with a 3-meter remote probe and Max\/Min memory. The Indoor-Outdoor Thermometer w\/Hygrometer adds a built-in \u003cstrong\u003ealarm clock function\u003c\/strong\u003e with 12\/24-hour modes, making it the better choice if you want a single device that also handles grow room scheduling reminders. The \u003ca href=\"\/products\/active-air-hygro-thermometer\"\u003eActive Air Hygro-Thermometer\u003c\/a\u003e focuses purely on environmental monitoring without the alarm feature.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the remote probe also measure humidity, or just temperature?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe 3-meter remote probe measures temperature only. Humidity is measured by the onboard sensor located on the side of the unit. This means for humidity readings, the unit itself needs to be positioned in the zone you want to monitor — while the probe can independently capture temperature from a separate remote location.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow does the Max\/Min memory help with grow room management?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe Max\/Min function records the highest and lowest values reached for both temperature and humidity since the last reset. This is invaluable for identifying overnight temperature drops during lights-off, humidity spikes after watering, or heat buildup during peak lighting hours — conditions you may not be present to observe in real time.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I use the alarm clock function?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe alarm clock supports both 12-hour and 24-hour time formats. Setup and alarm programming instructions are covered in the included instruction manual, linked in the Support \u0026amp; Manuals section above. The alarm is useful for scheduling feeding intervals, reminding you to check on plants, or flagging the end of a treatment period.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhere should I position the unit and probe in my grow tent setup?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eA common configuration is to place the unit outside the tent — on a shelf or wall nearby — and route the 3-meter probe through a vent opening or \u003ca href=\"\/products\/active-air-premium-ducting-6x25\"\u003eActive Air Premium Ducting - 6\" x 25'\u003c\/a\u003e to sit at canopy level inside. This gives you canopy-level temperature from the probe and ambient room humidity and temperature from the onboard sensors, covering both zones without opening the tent for readings.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan this thermometer be wall-mounted?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eAt 0.7\" depth and under 0.3 lbs, the unit is well suited for wall mounting in addition to freestanding use. Wall mounting keeps it at eye level in a fixed position, freeing up shelf and workspace while keeping environmental readings continuously visible. Refer to the instruction manual for mounting hardware details.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Active Air","offers":[{"title":"Default Title","offer_id":51686476611800,"sku":"HGIOHT","price":9.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/ActiveAir_HGIOHT.jpg?v=1790965776"},{"product_id":"photobio-advanced-quantum-par-meter","title":"Photobio Advanced Quantum PAR Meter","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003ePhotobio Advanced Quantum PAR Meter\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eGuessing at light intensity during crop production leaves yield on the table — fixture height adjustments, dimmer settings, and environmental changes all shift the PPFD your canopy actually receives. The Photobio Advanced Quantum PAR Meter gives you accurate, repeatable PAR measurements across the 400-700nm waveband from a compact handheld unit with a remote sensor, so you can dial in every variable with real data rather than estimates. It stores up to 99 readings for easy reference as you work through fixture positioning across your entire grow space, including large-scale facilities powered by the \u003ca href=\"\/products\/photobio-ac-power-distribution-tree-40a\"\u003ePhotobio AC Power Distribution Tree\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Advanced Quantum PAR Meter is compatible with the full range of modern light sources — including high-efficiency fixtures like the \u003ca href=\"\/products\/photobio-mx2-led-680w-s4-w-iloc-100-277v\"\u003ePhotobio MX2 680W Full Spectrum LED Grow Light\u003c\/a\u003e, high-pressure sodium DE grow lights, and any traditional indoor grow light source — making it equally useful in grow tents, commercial greenhouses, and large-scale indoor farms. The kit ships complete with the main unit, remote quantum sensor, a short coiled connection cable, a 12-foot straight connection cable, AAA batteries, and a protective carrying case.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📊\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003e400-700nm PAR Measurement\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eMeasures photosynthetically active radiation across the full 400-700nm waveband — the range with a direct proportional relationship to photosynthesis rate and crop yield.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔬\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eRemote Quantum Sensor\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eHighly accurate remote sensor connects via short coiled or 12-foot straight cable, allowing precise canopy-level readings without moving the main unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💾\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003e99-Reading Storage\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eStores up to 99 measurements for easy reference while adjusting fixture height, dimmer settings, and other environmental variables across growth phases.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eUniversal Light Source Compatibility\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eCompatible with modern LED sole-source fixtures such as the \u003ca href=\"\/products\/photobio-tx2-led-800w-s5-200-480v\"\u003ePhotobio TX2 800W S5 Full Spectrum LED Grow Light\u003c\/a\u003e, HPS DE grow lights, and any traditional indoor grow light source.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🧳\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eComplete Kit\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eShips with main unit, remote sensor, short coiled cable, 12-foot straight cable, AAA batteries, and a protective carrying case — everything needed out of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌱\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eGrow Tent to Commercial Scale\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eCompact and portable design suits grow tent hobbyists using the \u003ca href=\"\/products\/photobio-vp-led-32w-ve-2-pack-100-277v\"\u003ePhotobio VP 32W Vegetative LED Grow Light\u003c\/a\u003e and commercial greenhouse operators alike.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAdvanced Quantum PAR Meter (main unit)\u003c\/li\u003e\n\u003cli\u003eRemote quantum sensor\u003c\/li\u003e\n\u003cli\u003eShort coiled connection cable\u003c\/li\u003e\n\u003cli\u003e12′ straight connection cable\u003c\/li\u003e\n\u003cli\u003eAAA batteries\u003c\/li\u003e\n\u003cli\u003eProtective carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e400-700nm (PAR \/ PPFD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eReading Storage\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eUp to 99 measurements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eSensor Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eRemote quantum sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eCable Options\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eShort coiled; 12′ straight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003ePower Source\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eAAA batteries (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eCompatible Light Sources\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eLED (sole-source \u0026amp; supplemental), HPS DE, traditional indoor grow lights\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0.86 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003ePackage Dimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e5.6 × 6.2 × 3.2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/PHOTOBIO_AdvancedQuantum_PAR_Meter_Manual.pdf?v=1781810763\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\"\u003e\u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003eAdvanced Quantum PAR Meter Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does a PAR meter actually measure?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eA PAR meter measures Photosynthetically Active Radiation — the quantity of photons in the 400-700nm wavelength range reaching a surface, expressed as PPFD. There is a direct proportional relationship between photon absorption in this range and photosynthesis rate, making PPFD one of the most important variables for maximizing crop yield under any light source.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs this meter compatible with LED grow lights?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. The Advanced Quantum PAR Meter is compatible with modern sole-source and supplemental LED fixtures, such as the high-voltage \u003ca href=\"\/products\/photobio-cx-2125-high-voltage-led-850w-347-480v-s4-no-cord\"\u003ePhotobio CX 2125 850W Full Spectrum LED Grow Light\u003c\/a\u003e, high-pressure sodium DE grow lights, and any traditional indoor grow light source.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I use the remote sensor with the main unit?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe remote quantum sensor connects to the main unit via either the included short coiled cable or the 12-foot straight cable. Use the short cable for close-proximity readings and the 12-foot cable when you need to position the sensor at canopy level while holding the display unit at a comfortable height. Refer to the included manual for full operating instructions.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow does the 99-reading storage help during a grow room setup?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe 99-reading memory lets you take and store measurements at multiple canopy points across your grow space before reviewing and comparing results. This is particularly useful when mapping PPFD uniformity, adjusting fixture height across a run of lights, or documenting light levels at different dimmer settings across growth phases.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat batteries does the meter use and are they included?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe Advanced Quantum PAR Meter runs on AAA batteries, which are included in the kit. The meter also ships with a protective carrying case to keep the unit and accessories organized between uses.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs this meter suitable for commercial greenhouse use?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. The Advanced Quantum PAR Meter is designed for grow tent, greenhouse, and commercial indoor farm applications. Its compact and portable form factor makes it practical for taking measurements across large facilities, and the remote sensor cable provides canopy-level accuracy without disrupting plant canopy structure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cstyle\u003e.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\u003c\/style\u003e","brand":"Photobio LED","offers":[{"title":"Default Title","offer_id":51848166867160,"sku":"LGBQM2","price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/PHOTOBIO_AdvancedQuantum_PAR_Meter_1.jpg?v=1790965800"},{"product_id":"vivosun-4-in-1-sensor-co2-temp-humidity-light-monitor","title":"Vivosun 4-in-1 Environmental Sensor for GrowHub E42A+","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eVIVOSUN 4-in-1 Environmental Sensor for GrowHub E42A+\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eGuessing at your grow room's climate costs you yield. The VIVOSUN VSE-CO2S4 4-in-1 Sensor tracks temperature, humidity, CO₂ levels up to 40,000 ppm, and light status in real time, then feeds that data straight to a GrowHub E42A+ controller so you can correct problems before they cost you a harvest.\u003c\/p\u003e\n\u003cp\u003eThe built-in NDIR CO₂ sensor works alongside an \u003ca href=\"\/products\/vivosun-aerozesh-t6-filtration-kit-408-cfm-e42a\"\u003eAeroZesh T6 Smart Air Filtration Kit\u003c\/a\u003e or CO₂ injection system to keep levels in the optimal range, helping plants photosynthesize efficiently without wasting energy or gas. A Swiss-made temp\/humidity chip pairs with that CO₂ sensor to deliver readings you can act on immediately, while the white housing resists heat absorption for consistent results day after day, even under \u003ca href=\"\/products\/vivosun-aerolight-240w-led-grow-light-4x2ft\"\u003eAeroLight LED grow lights\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eBuilt for tents, greenhouses, bedrooms, or cellars, the VSE-CO2S4 connects directly to the GrowHub E42A+ for remote monitoring and automated triggers. For growers who need to measure leaf surface temperatures for precise VPD calculations, the \u003ca href=\"\/products\/vivosun-vpd-thermometer-infrared-laser-12-1-ratio\"\u003eVivosun VPD Infrared Laser Thermometer\u003c\/a\u003e is a perfect manual companion to this automated sensor. Note that the probe is not compatible with the original E42 controller — it's built specifically for the E42A+.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.image-gallery-container {width: 100%; overflow: hidden; margin: 20px 0;}.image-gallery {display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px;}.gallery-item {aspect-ratio: 1; overflow: hidden; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1);}.gallery-item img {width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease;}.gallery-item:hover img {transform: scale(1.05);}@media (max-width: 768px) {.image-gallery {display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 10px; padding-bottom: 10px;}.gallery-item {flex: 0 0 280px; scroll-snap-align: start;}}\u003c\/style\u003e\u003cdiv class=\"image-gallery-container\"\u003e\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_4-in-1_Sensor_Compatible_with_GrowHub_E42A_16.jpg?v=1782751251\" alt=\"VIVOSUN 4-in-1 Sensor front view\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_4-in-1_Sensor_Compatible_with_GrowHub_E42A_10.jpg?v=1782751262\" alt=\"VIVOSUN 4-in-1 Sensor side profile\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_4-in-1_Sensor_Compatible_with_GrowHub_E42A_13.jpg?v=1782751237\" alt=\"VIVOSUN 4-in-1 Sensor mounted in grow tent\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_4-in-1_Sensor_Compatible_with_GrowHub_E42A_12.jpg?v=1782751234\" alt=\"VIVOSUN 4-in-1 Sensor probe cable detail\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eBuild the Right Grow Environment\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eTracks temperature, humidity, CO₂, and light in real time so you can adjust before growth is affected.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💨\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eTurn CO₂ Data Into Faster Growth\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eWorks automatically with fans or CO₂ systems to maintain optimal levels for efficient photosynthesis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎯\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eMake Confident Grow Decisions\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eA high-accuracy Swiss temp\/humidity chip and NDIR CO₂ sensor deliver readings you can trust for daily and long-term planning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📡\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eAutomate Your Grow\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eConnects to GrowHub E42A+ to monitor conditions, set triggers, and manage your grow space remotely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🏠\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eVersatile for Any Indoor Setup\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eBuilt for grow tents, greenhouses, bedrooms, or cellars growing herbs, vegetables, or flowers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📊\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eWide CO₂ Measuring Range\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eMeasures 0 to 40,000 ppm with ±50 ppm\/5% NDIR accuracy for dependable readings at any concentration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eModel Name\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eVSE-CO2S4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eSensor Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e1.77 × 1.77 × 0.53 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eProbe\/Cable Length\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e118 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eInterface Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e2.5mm jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e14°F to 140°F (-10°C to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eHumidity Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0-100% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eCO₂ Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0-40,000 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eLight Detection\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eON\/OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e±0.8°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eHumidity Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e±6% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eCO₂ Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e±50 ppm \/ ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe VIVOSUN VSE-CO2S4 4-in-1 Sensor is backed by a 2-year after-sale service warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cstyle\u003e.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\u003c\/style\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes this sensor work with the GrowHub E42 controller?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNo. The probe is built for the GrowHub E42A+ specifically and is not compatible with the original E42 controller. Confirm your controller model before ordering.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does the CO₂ sensor measure and how accurate is it?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe built-in NDIR CO₂ sensor measures from 0 to 40,000 ppm with an accuracy of ±50 ppm or ±5%. This range covers everything from ambient air to supplemented grow rooms.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use this sensor without a GrowHub controller?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe sensor is designed to pair with the GrowHub E42A+ for remote monitoring and automation. Without the controller, you won't have access to the app-based data and trigger features.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow does the light detection feature work?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe sensor detects whether your grow lights are ON or OFF, giving you a simple status reading alongside your temperature, humidity, and CO₂ data.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhere should I place the sensor for the most accurate readings?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003ePosition the probe at canopy height, away from direct airflow from fans or vents. The white housing helps minimize heat absorption for more consistent readings in tents, greenhouses, or grow rooms. If you need to monitor a separate area without CO₂ tracking, the \u003ca href=\"\/products\/vivosun-aerolab-thb1s-hygrometer-bluetooth-app\"\u003eVivosun AeroLab THB1S Bluetooth Hygro-Thermometer\u003c\/a\u003e is an excellent standalone option.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs this sensor suitable for commercial grow operations?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. The 0-40,000 ppm CO₂ range and high-accuracy Swiss temp\/humidity chip make it suitable for both hobbyist tents and larger commercial environments with supplemented CO₂.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":51924241809624,"sku":"WEB-VSE-CO2S4","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_4-in-1_Sensor_Compatible_with_GrowHub_E42A_1.png?v=1782751224"},{"product_id":"vivosun-vpd-thermometer-infrared-laser-12-1-ratio","title":"Vivosun VPD Infrared Laser Thermometer","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eVIVOSUN VPD Infrared Laser Thermometer\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eGuesswork in your grow space costs you yield. The VIVOSUN VSE-VT001 VPD Thermometer delivers fast 5-second readings across a -58°F to 896°F (-50°C to 480°C) range, tracking leaf and air VPD, ambient and leaf temperature, and humidity so you can make precise adjustments before plant stress sets in. For continuous climate tracking via your smartphone, consider adding the \u003ca href=\"\/products\/vivosun-aerolab-thb1s-hygrometer-bluetooth-app\"\u003eVivosun AeroLab THB1S Bluetooth Hygro-Thermometer\u003c\/a\u003e to your setup.\u003c\/p\u003e\n\u003cp\u003eA 13-point laser targets your exact measurement spot from a safe distance, backed by a 12:1 distance-to-spot ratio for accuracy even on hard-to-reach surfaces. Adjustable emissivity from 0.1 to 1.00 (default 0.98) lets you dial in readings on virtually any material, making the VSE-VT001 equally useful for HVAC checks, electrical testing, and kitchen tasks beyond the grow room.\u003c\/p\u003e\n\u003cp\u003eThe backlit LCD stays readable in low light, stores up to 5 past readings for quick comparison, and powers down automatically after 30 seconds to save battery. Built-in high\/low alerts flash a red indicator the moment your readings move outside your set range, so problems get caught early.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.image-gallery-container {width: 100%; overflow: hidden; margin: 20px 0;}.image-gallery {display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px;}.gallery-item {aspect-ratio: 1; overflow: hidden; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1);}.gallery-item img {width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease;}.gallery-item:hover img {transform: scale(1.05);}@media (max-width: 768px) {.image-gallery {display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 10px; padding-bottom: 10px;}.gallery-item {flex: 0 0 280px; scroll-snap-align: start;}}\u003c\/style\u003e\u003cdiv class=\"image-gallery-container\"\u003e\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_VPD_Thermometer_1.jpg?v=1782756084\" alt=\"VIVOSUN VPD Thermometer display screen\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_VPD_Thermometer_5.jpg?v=1782756084\" alt=\"VIVOSUN VPD Thermometer high infrared laser\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_VPD_Thermometer_3.jpg?v=1782756084\" alt=\"VIVOSUN VPD Thermometer laser targeting\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_VPD_Thermometer_6.jpg?v=1782756084\" alt=\"VIVOSUN VPD Thermometer size and grip detail\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eMulti-Function Thermometer\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eMeasures -58°F to 896°F with fast 5-second readings for plant care, HVAC, and electrical testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🍃\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eVPD Monitoring for Better Planting\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eTracks leaf and air VPD so you can fine-tune your grow space for optimal growth, often used alongside the \u003ca href=\"\/products\/vivosun-4-in-1-sensor-co2-temp-humidity-light-monitor\"\u003eVivosun 4-in-1 Environmental Sensor\u003c\/a\u003e for comprehensive climate data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎯\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eAdjustable Emissivity \u0026amp; High Accuracy\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eEmissivity range of 0.1 to 1.00 with a 12:1 distance-to-spot ratio for safe, accurate readings from afar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eUser-Friendly Design\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eLarge backlit LCD, storage for 5 past readings, and auto power-off after 30 seconds to preserve battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔴\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eSafe \u0026amp; Accurate\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eA 13-point circular laser indicator pinpoints your target while flashing high\/low alerts warn when readings exceed your set range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚡\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eFast Response Time\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eResponds in under 500ms at an 8–14 μm wavelength, delivering near-instant readings whenever you need them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1x Thermometer\u003c\/li\u003e\n\u003cli\u003e2x AAA Batteries\u003c\/li\u003e\n\u003cli\u003e1x Storage Bag\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eModel Name\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eVSE-VT001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eProduct Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e6.1 × 3.62 × 1.65 in. (155 × 92 × 42 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDisplay Size\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e1.14 × 1.06 in. (29 × 27mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eProduct Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0.397 lbs. (180g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eInfrared Temperature Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e-58°F to 896°F (-50°C to 480°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eInfrared Temperature Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e32°F–896°F: ±(1.5%+5°F); -58°F–32°F: ±5°F\u003cbr\u003e0°C–480°C: ±(1.5%+1°C); -50°C–0°C: ±3°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eResponse Time \u0026amp; Wavelength\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e\u0026lt;500ms, 8–14 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDistance-to-Spot Ratio (D:S)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e12:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eEmissivity\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eAdjustable 0.1–1.00 (Default: 0.98)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eLaser Positioning\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e13-Point Circular Indicator, 650nm, \u0026lt;1mW, Class 2 Laser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eAmbient Temperature Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e-4°F to 140°F ±2°F (-20°C to 60°C ±1°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eAmbient Humidity Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e1%–99% RH ±4%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eAuto Power Off\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e30 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e2 × 1.5V AAA (R03\/LR03)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e32°F to 122°F (0°C to 50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e-4°F to 140°F (-20°C to 60°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_VPD_Thermometer_HVAC.pdf?v=1782758769\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\"\u003e\u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003eVPD Thermometer Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe VIVOSUN VSE-VT001 VPD Thermometer is backed by a 2-year warranty against manufacturing defects for products purchased directly from VIVOSUN or authorized dealers.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cstyle\u003e.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\u003c\/style\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is VPD and why does it matter for my plants?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eVPD, or vapor pressure deficit, measures the gap between the moisture in the air and the moisture a leaf can hold. Monitoring leaf and air VPD helps you adjust temperature and humidity for optimal growth and nutrient absorption, especially when using high-intensity lighting like the \u003ca href=\"\/products\/vivosun-aerolight-120w-led-grow-light-2x2ft\"\u003eVivosun AeroLight 120W LED Grow Light\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use this thermometer outside of plant care?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. With adjustable emissivity from 0.1 to 1.00, the VSE-VT001 works well for HVAC checks, electrical testing, and monitoring airflow in ventilation systems like the \u003ca href=\"\/products\/vivosun-aerozesh-t4-filtration-kit-210-cfm-e42a\"\u003eVivosun AeroZesh T4 Smart Air Filtration PRO Kit\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow accurate is the laser targeting?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eA 13-point circular laser indicator pinpoints your exact measurement area, and a 12:1 distance-to-spot ratio lets you take safe, accurate readings from a distance without getting close to the surface.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow fast are the readings?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe VSE-VT001 delivers readings in under 500ms, with full temperature results in about 5 seconds across its -58°F to 896°F range.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat happens if a reading goes outside my target range?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe unit flashes a red indicator and sounds a high\/low alert whenever a reading moves outside the range you've set, so you can catch issues before they affect your plants.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes it come with batteries?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the VSE-VT001 ships with the 2 × 1.5V AAA batteries it requires, so it's ready to use right out of the box.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow many past readings can it store?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe thermometer stores up to 5 previous readings, making it easy to compare results without writing them down.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":51924399030488,"sku":"WEB-VSE-VT001","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_VPD_Thermometer_1.png?v=1782756084"},{"product_id":"vivosun-temp-humidity-sensor-probe-12ft-waterproof","title":"Vivosun 12ft Temperature \u0026 Humidity Sensor Probe","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eVIVOSUN 12ft Temperature \u0026amp; Humidity Sensor Probe\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eA damaged or missing sensor probe shouldn't put your monitoring setup out of commission. The VIVOSUN VSS-THSP is a waterproof, stainless steel temperature and humidity probe built to work with the GrowHub Controller E42 and E42A, as well as the \u003ca href=\"\/products\/vivosun-aerolab-thb1s-hygrometer-bluetooth-app\"\u003eVivosun AeroLab THB1S Bluetooth Hygro-Thermometer\u003c\/a\u003e, giving you a reliable replacement or spare for any of these systems.\u003c\/p\u003e\n\u003cp\u003eA 12ft cable and 2.5mm jack interface make it easy to position the probe exactly where you need accurate readings, whether that's deep in a grow tent or across a larger space. The stainless steel housing resists corrosion and moisture damage, so you can run the probe in humid grow rooms or near misting systems without worrying about long-term wear.\u003c\/p\u003e\n\u003cp\u003eReliable accuracy comes standard, with temperature readings within ±0.9°F and humidity readings within ±5%, giving you data you can trust for daily adjustments. For growers looking for even more comprehensive data, this probe pairs perfectly with the \u003ca href=\"\/products\/vivosun-4-in-1-sensor-co2-temp-humidity-light-monitor\"\u003eVivosun 4-in-1 Environmental Sensor\u003c\/a\u003e for CO2 and light monitoring. Note that both the GrowHub E42A controller and the AeroLab THB1S already ship with a sensor probe included, so this is intended as a standalone replacement or for use with the original E42 and THB1 units.\u003c\/p\u003e\n\u003c\/div\u003e\u003cstyle\u003e.image-gallery-container {width: 100%; overflow: hidden; margin: 20px 0;}.image-gallery {display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px;}.gallery-item {aspect-ratio: 1; overflow: hidden; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1);}.gallery-item img {width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease;}.gallery-item:hover img {transform: scale(1.05);}@media (max-width: 768px) {.image-gallery {display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 10px; padding-bottom: 10px;}.gallery-item {flex: 0 0 280px; scroll-snap-align: start;}}.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 200px;box-sizing:border-box;}.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}.faq-question:hover{background-color:#f0f0f0;}.faq-question.active{background-color:#2c5530;color:white;}.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}.faq-question.active .faq-icon{opacity:1;}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}.faq-answer.active{padding:20px;max-height:500px;}.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\u003c\/style\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cdiv class=\"image-gallery-container\"\u003e\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/VIVOSUN_12ft_Temperature_Humidity_SensorProbe_1.jpg?v=1782759656\" alt=\"VIVOSUN Temperature Humidity Sensor Probe front view\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/VIVOSUN_12ft_Temperature_Humidity_SensorProbe_4.jpg?v=1782759656\" alt=\"VIVOSUN Temperature Humidity Sensor Probe cable detail\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/VIVOSUN_12ft_Temperature_Humidity_SensorProbe_5.jpg?v=1782759656\" alt=\"VIVOSUN Temperature Humidity Sensor Probe stainless steel tip\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/VIVOSUN_12ft_Temperature_Humidity_SensorProbe_2.jpg?v=1782759656\" alt=\"VIVOSUN Temperature Humidity Sensor Probe connector jack\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eWaterproof Stainless Steel Build\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eBuilt to withstand humid, wet grow environments without compromising sensor accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eExtended 12ft Cable Reach\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eGives you the flexibility to place the probe exactly where readings matter most.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔌\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eUniversal 2.5mm Jack\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eCompatible with the GrowHub E42, E42A, AeroLab THB1, and THB1S controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎯\u003c\/span\u003e\u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eReliable Accuracy\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eDelivers temperature readings within ±0.9°F and humidity readings within ±5% for dependable monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eModel Name\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eVSS-THSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e3.31 × 2.81 × 0.79 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eCable Length\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e12 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eInterface Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e2.5mm jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e±0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eHumidity Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe VIVOSUN VSS-THSP Temperature \u0026amp; Humidity Sensor Probe is backed by a 2-year after-sale service warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDo I need this probe if I already own a GrowHub E42A or AeroLab THB1S?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNo. Both the GrowHub E42A controller and the \u003ca href=\"\/products\/vivosun-aerolab-thb1s-hygrometer-bluetooth-app\"\u003eVivosun AeroLab THB1S Bluetooth Hygro-Thermometer\u003c\/a\u003e already ship with a sensor probe included. This listing is intended as a standalone replacement or spare.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs this probe compatible with the original E42 or THB1 units?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. The VSS-THSP works with the GrowHub E42 and E42A controllers as well as the AeroLab THB1 and THB1S Hygro-Thermometer via its 2.5mm jack.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow long is the probe cable?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe cable measures 12 feet, giving you room to position the sensor away from your controller for accurate canopy-level readings, which is crucial when monitoring heat from high-output fixtures like the \u003ca href=\"\/products\/vivosun-aerolight-550w-led-grow-light-4x4ft\"\u003eVivosun AeroLight 550W LED Grow Light\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan this probe handle humid or wet grow environments?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. The probe is built with waterproof stainless steel construction, making it suitable for humid tents, greenhouses, and other moisture-heavy environments.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow accurate are the temperature and humidity readings?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe probe delivers temperature readings within ±0.9°F and humidity readings within ±5%. For spot-checking leaf temperatures, we suggest using the \u003ca href=\"\/products\/vivosun-vpd-thermometer-infrared-laser-12-1-ratio\"\u003eVivosun VPD Infrared Laser Thermometer\u003c\/a\u003e alongside this continuous monitor.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat is this probe's warranty?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe VSS-THSP comes with a 2-year after-sale service warranty, covering manufacturer defects during normal use.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":51924475838680,"sku":"WEB-VSS-THSP","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/VIVOSUN_12ft_Temperature_Humidity_SensorProbe_3.jpg?v=1782759656"},{"product_id":"vivosun-aerolab-thb1s-hygrometer-bluetooth-app","title":"Vivosun AeroLab THB1S Bluetooth Hygro-Thermometer","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eVivosun AeroLab THB1S Bluetooth Hygro-Thermometer\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eInconsistent temp and humidity readings make it hard to know if your grow space is actually dialed in. The VIVOSUN AeroLab THB1S pairs a built-in smart Swiss sensor with an included external sensor probe for dual-channel monitoring, delivering fast, accurate temperature and humidity readings (±0.9°F\/±5%RH) so you always know what's happening in your space.\u003c\/p\u003e\n\u003cp\u003eA large LCD displays visualized VPD data, which can be cross-referenced with a \u003ca href=\"\/products\/vivosun-vpd-thermometer-infrared-laser-12-1-ratio\"\u003eVPD infrared laser thermometer\u003c\/a\u003e for leaf surface accuracy, along with high\/low temperature records and three-zone comfort indicators at a glance. Wall-mount, kick-stand, and hanging install options let you place it wherever it's most useful. Connect via Bluetooth to the VIVOSUN App for remote monitoring and instant alerts the moment readings move outside your set range, with two years of free data storage so you can track trends and export historical data anytime.\u003c\/p\u003e\n\u003cp\u003eThe THB1S also works as an additional sensor for GrowHub E42, E42A, and E25 controllers, letting the GrowHub act as its WiFi gateway, or pairs with \u003ca href=\"\/products\/vivosun-aerozesh-t6-filtration-kit-408-cfm-e42a\"\u003eAeroZesh\u003c\/a\u003e ventilation systems, \u003ca href=\"\/products\/vivosun-aerolight-120w-led-grow-light-2x2ft\"\u003eAeroLight LED grow lights\u003c\/a\u003e, and other VIVOSUN SGS devices to add visual temp, humidity, and VPD data to your existing setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.image-gallery-container {width: 100%; overflow: hidden; margin: 20px 0;}\n.image-gallery {display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px;}\n.gallery-item {aspect-ratio: 1; overflow: hidden; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1);}\n.gallery-item img {width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease;}\n.gallery-item:hover img {transform: scale(1.05);}\n@media (max-width: 768px) {\n  .image-gallery {display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 10px; padding-bottom: 10px;}\n  .gallery-item {flex: 0 0 280px; scroll-snap-align: start;}\n}\n.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n.faq-container{width:100%;margin:0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;}\n.faq-item{border:1px solid #eee;border-radius:8px;margin-bottom:10px;overflow:hidden;transition:all .3s ease;width:100%;}\n.faq-item:hover{box-shadow:0 2px 8px rgba(0,0,0,.1);}\n.faq-question{background-color:#f8f8f8;padding:15px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;font-size:1.05em;color:#333;transition:background-color .3s ease;}\n.faq-question:hover{background-color:#f0f0f0;}\n.faq-question.active{background-color:#2c5530;color:white;}\n.faq-icon{font-size:1.2em;transition:transform .3s ease;font-weight:bold;opacity:.7;line-height:1;}\n.faq-question.active .faq-icon{opacity:1;}\n.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s ease;background-color:white;}\n.faq-answer.active{padding:20px;max-height:500px;}\n.faq-answer p{margin:0 0 10px 0;line-height:1.6;color:#555;}\n\u003c\/style\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cdiv class=\"image-gallery-container\"\u003e\n\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_THB1S_Bluetooth_Hygrometer_Thermometer4.jpg?v=1782760993\" alt=\"VIVOSUN AeroLab THB1S front display\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_THB1S_Bluetooth_Hygrometer_Thermometer5.jpg?v=1782760993\" alt=\"VIVOSUN AeroLab THB1S wall mounted in grow tent\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_THB1S_Bluetooth_Hygrometer_Thermometer1.jpg?v=1782760993\" alt=\"VIVOSUN AeroLab THB1S app screen\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_THB1S_Bluetooth_Hygrometer_Thermometer8.jpg?v=1782760993\" alt=\"VIVOSUN AeroLab THB1S with external sensor probe\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎯\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eHigh Accuracy \u0026amp; Dual Channels\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eA built-in smart Swiss sensor plus an included external probe deliver real-time readings within ±0.9°F\/±5%RH.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📺\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eUser-Friendly Design\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLarge LCD shows visualized VPD, high\/low records, and comfort-zone indicators; mounts by wall, stand, or hook.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📲\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eRemote Control \u0026amp; Smart App Alerts\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eConnects via Bluetooth to the VIVOSUN App for remote monitoring and instant out-of-range notifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💾\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e2-Year Free Data Storage\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eTrack historical temp and humidity trends, then export your data anytime to inform future adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔗\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eGrowHub Integration\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003ePairs with GrowHub E42, E42A, and E25 as an additional sensor, using the GrowHub as its WiFi gateway.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌬️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eVIVOSUN SGS Compatible\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eWorks with \u003ca href=\"\/products\/vivosun-aerozesh-g6-filtration-kit-388-cfm-wifi\"\u003eAeroZesh G6\u003c\/a\u003e, \u003ca href=\"\/products\/vivosun-aerolight-240w-led-grow-light-4x2ft\"\u003eAeroLight\u003c\/a\u003e, and other VIVOSUN SGS devices to add visual temp, humidity, and VPD data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x Smart Controller\u003c\/li\u003e\n\u003cli\u003e3x AAA Batteries\u003c\/li\u003e\n\u003cli\u003e1x Wire Tie\u003c\/li\u003e\n\u003cli\u003e2x Expansion Screws\u003c\/li\u003e\n\u003cli\u003e1x Temperature\/Humidity Sensor (3m)\u003c\/li\u003e\n\u003cli\u003e1x Strap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1em; border: 1px solid #eee;\"\u003e\n\u003cthead style=\"background-color: #f8f8f8;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px 8px; text-align: left; border-bottom: 2px solid #ccc; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eModel Name\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eAeroLab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e3.31 × 2.81 × 0.79 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDisplay Size\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e2.33 × 2.33 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eSensor Probe Length\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e3m (9.8 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eInterface Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e2.5mm jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e-4°F to 149°F (-20°C to 65°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0%-100% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDetection Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e-40°F to 257°F (-40°C to 125°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eDetection Humidity\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e0%-100% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eReading Accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003e±0.9°F \/ ±5% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eBatteries Included\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 8px; text-align: left; border-bottom: 1px solid #eee;\"\u003eAAA × 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_THB1S_Bluetooth_Hygrometer_Thermometer.pdf?v=1782760777\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eAeroLab THB1S Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe VIVOSUN AeroLab THB1S Bluetooth Hygrometer Thermometer is backed by a 2-year after-sale service warranty.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the THB1S come with the external sensor probe?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. The AeroLab THB1S includes the external sensor probe for dual-channel monitoring. If you need a longer reach for large grow tents, it is also compatible with the \u003ca href=\"\/products\/vivosun-temp-humidity-sensor-probe-12ft-waterproof\"\u003e12ft waterproof sensor probe\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does dual-channel monitoring mean?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe THB1S combines its built-in Swiss sensor with the included external probe, letting you monitor two locations or readings at once for more complete coverage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhich GrowHub controllers is this compatible with?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe THB1S pairs with GrowHub E42, E42A, and E25 as an additional sensor, using the GrowHub as its WiFi gateway for remote access.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I get app alerts for temperature or humidity changes?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eConnect the THB1S to the VIVOSUN App via Bluetooth, then set your preferred temperature and humidity thresholds to receive instant notifications when readings exceed them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow long is historical data stored?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe THB1S includes 2 years of free data storage, letting you review trends over time and export your data whenever you need it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat installation options are available?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe unit supports wall mounting, kick-standing, and hanging, so you can position it wherever it's easiest to read and monitor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes it work with other VIVOSUN devices besides GrowHub?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. The THB1S also works with AeroZesh, AeroLight, and other VIVOSUN SGS devices to provide visual temp, humidity, and VPD data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":51924518338776,"sku":"WEB-VS-THB1S","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_THB1S_Bluetooth_Hygrometer_Thermometer2.png?v=1782760993"},{"product_id":"bluelab-ph-penplus-ph-temp-meter-replaceable-probe","title":"Bluelab pH PenPlus - Replaceable Probe pH \u0026 Temp Pen","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\u003ch2\u003eBluelab pH PenPlus - Replaceable Probe pH \u0026amp; Temp Pen\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eWorn-out pH probes force growers to replace an entire meter just to keep readings accurate — an unnecessary cost when only the probe has failed. While the standard \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003eBluelab pH Pen\u003c\/a\u003e is a reliable favorite, the PenPlus solves this issue of probe wear with a screw-cap replaceable pH and Temperature probe, letting you swap in a new probe in seconds instead of buying a new pen.\u003c\/p\u003e\n\u003cp\u003eBuilt around a double-junction pH probe for consistent accuracy, the pH PenPlus reads pH from 0.0–14.0 with ±0.1 accuracy and tracks temperature from 32–122°F (0–50°C). A silicone cap filled with \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl storage solution\u003c\/a\u003e uses an internal sponge to keep the probe hydrated between uses, while an IP68 dustproof and waterproof rating and bright backlit display make it dependable in demanding grow room and reservoir conditions.\u003c\/p\u003e\n\u003cp\u003eDay-to-day operation stays simple: a 2-point calibration process with a 30-day reminder keeps the pH PenPlus accurate without guesswork, and an auto-off function conserves battery life between uses. The compact handheld design includes an integrated lanyard with a waterproof silicone probe cap, making it easy to carry between reservoirs. For growers who also need to check nutrient levels, this pen is the perfect companion to the \u003ca href=\"\/products\/bluelab-truncheon-meter-ec-cf-ppm-no-calibration\"\u003eBluelab Truncheon Meter\u003c\/a\u003e. Each PenPlus ships with calibration solution sachets and storage solution, giving growers everything needed to start taking accurate readings right out of the box.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 8px;\"\u003e\u003ciframe loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/5_IuWWQ4wpo?autoplay=1\u0026amp;mute=1\u0026amp;playsinline=1\u0026amp;loop=1\u0026amp;playlist=5_IuWWQ4wpo\u0026amp;controls=0\u0026amp;rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔬\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eDouble-Junction pH Probe\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eDelivers consistent, reliable pH readings across a full 0.0–14.0 range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔄\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eReplaceable Probe Design\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eScrew-cap pH\/Temperature probe swaps out in seconds, extending the pen's usable life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eHydrated Probe Cap\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eKCl-filled silicone cap with internal sponge keeps the probe hydrated between uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛡️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eIP68 Waterproof \u0026amp; Dustproof\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSealed rating protects internal electronics from moisture and grow room dust.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚙️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eQuick 2-Point Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSimple calibration with a 30-day reminder keeps readings accurate over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBacklit Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBright screen stays easy to read in low-light grow environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBluelab pH PenPlus with replaceable pH and Temperature probe\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003eBluelab pH 7.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003eBluelab pH 4.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl Storage Solution\u003c\/a\u003e (18ml \/ 0.6fl oz)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0–14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e1°C \/ 1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eNutrient solution, 0.2 EC and above; 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_pH_PenPlus_Manual_V01_2026-03-30.pdf?v=1789574944\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003epH PenPlus Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Bluelab pH PenPlus is covered by a 2-year limited warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I replace the probe on the Bluelab pH PenPlus?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe probe uses a screw-cap design — unscrew the used pH probe and thread in a new one. No tools are needed, though you'll want to recalibrate after installing a fresh probe.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often should I calibrate the pH PenPlus?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eBluelab recommends regular 2-point calibration, and the pen includes a built-in 30-day reminder so you don't miss a cycle.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat temperature range can the pH PenPlus be used in?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt operates and reads accurately between 32–122°F (0–50°C). Avoid using or storing the pen outside this range, as it can affect probe performance.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the Bluelab pH PenPlus waterproof?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. It carries an IP68 dustproof and waterproof rating, making it suitable for wet grow room and reservoir environments.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's included in the box?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eEach PenPlus ships with the pen and replaceable probe, plus single-use 7.0 and 4.0 pH calibration solution sachets and a KCl storage solution sachet to get you started.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat warranty comes with the pH PenPlus?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe Bluelab pH PenPlus is covered by a 2-year limited warranty.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473135825112,"sku":"PENPLUSPH","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_pH_PenPlus_3.png?v=1789575504"},{"product_id":"bluelab-onepen-ph-ec-temp-meter-bluetooth-connected","title":"Bluelab OnePen - 3-in-1 pH, EC \u0026 Temp Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\u003ch2\u003eBluelab OnePen - 3-in-1 pH, EC \u0026amp; Temp Meter\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eJuggling separate \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003epH pens\u003c\/a\u003e and \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003econductivity pens\u003c\/a\u003e means double the calibration, double the probes to maintain, and readings that never line up in time. The Bluelab OnePen solves this with a single 3-in-1 probe that reads pH, conductivity (EC), and temperature simultaneously, giving growers one accurate snapshot of nutrient solution health instead of three separate checks.\u003c\/p\u003e\n\u003cp\u003eThe pen pairs a \u003ca href=\"\/products\/bluelab-onepen-replacement-probe-extend-pen-life\"\u003ereplaceable double-junction pH probe\u003c\/a\u003e with titanium EC electrodes, displaying pH and EC readings together on a bright backlit screen with 0.01 pH resolution. A built-in probe health indicator flags wear before it affects accuracy, and simple 2-point pH calibration using \u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003epH 7.0\u003c\/a\u003e and \u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003epH 4.0\u003c\/a\u003e buffers keeps results dependable over time. An IP68 rating protects the pen against dust and moisture in wet grow room and reservoir environments.\u003c\/p\u003e\n\u003cp\u003eConnect the OnePen to the \u003ca href=\"https:\/\/edenic.io\/\" rel=\"noopener noreferrer\" style=\"color: #2c5530;\" target=\"_blank\"\u003eEdenic app\u003c\/a\u003e over Bluetooth to view readings remotely, manage data, and keep the pen's software current. Conductivity readings are available in EC, mS\/cm, CF, ppm 500 (TDS), or ppm 700—similar to the scales used by the \u003ca href=\"\/products\/bluelab-truncheon-meter-ec-cf-ppm-no-calibration\"\u003eBluelab Truncheon Meter\u003c\/a\u003e—so the OnePen fits whichever nutrient program scale you already use. Plus, the \u003ca href=\"\/products\/bluelab-onepen-replacement-probe-extend-pen-life\"\u003ereplaceable probe\u003c\/a\u003e means a worn sensor doesn't mean buying a new pen.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 8px;\"\u003e\u003ciframe loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/r_MxV1JXhB4?autoplay=1\u0026amp;mute=1\u0026amp;playsinline=1\u0026amp;loop=1\u0026amp;playlist=r_MxV1JXhB4\u0026amp;controls=0\u0026amp;rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔬\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e\u003ca href=\"\/products\/bluelab-onepen-replacement-probe-extend-pen-life\"\u003eReplaceable Dual-Sensor Probe\u003c\/a\u003e\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eDouble-junction pH probe and titanium EC electrodes swap out without replacing the pen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📟\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eSimultaneous pH \u0026amp; EC Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBright backlit screen shows both readings at once, providing the same portable convenience as the \u003ca href=\"\/products\/bluelab-combo-meter-replaceable-ph-ec-probes-portable\"\u003eBluelab Combo Meter\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎯\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003ePrecise 0.01 pH Resolution\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eFine-grained readings help you dial in nutrient solutions with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚡\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eProbe Health Indicator\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eFlags probe wear early, so drifting readings don't catch you off guard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eIP68 Waterproof \u0026amp; Dustproof\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSealed construction holds up in wet reservoir and grow room conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📶\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBluetooth Connectivity\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003ePairs with the \u003ca href=\"https:\/\/edenic.io\/\" rel=\"noopener noreferrer\" style=\"color: #2c5530;\" target=\"_blank\"\u003eEdenic app\u003c\/a\u003e for remote readings and easy software updates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBluelab OnePen with \u003ca href=\"\/products\/bluelab-onepen-replacement-probe-extend-pen-life\"\u003ereplaceable pH, Conductivity (EC), and Temperature probe\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eBluelab Sensor Cleaning Brush\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003eBluelab pH 7.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003eBluelab pH 4.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl Storage Solution\u003c\/a\u003e (18ml \/ 0.6fl oz)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0–14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e\n\u003ctd\u003e±0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1°C \/ 0.1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Range\u003c\/td\u003e\n\u003ctd\u003e0–10 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Range\u003c\/td\u003e\n\u003ctd\u003e0–100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Range\u003c\/td\u003e\n\u003ctd\u003e0–5,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Resolution\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Range\u003c\/td\u003e\n\u003ctd\u003e0–7,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Resolution\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Accuracy\u003c\/td\u003e\n\u003ctd\u003e±70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e2x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_OnePen_Manual.pdf?v=1789576220\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eOnePen Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Bluelab OnePen is covered by a 2-year limited warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does the Bluelab OnePen measure?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt's a 3-in-1 handheld that reads pH, conductivity (EC), and temperature simultaneously on a single backlit display, giving you a full nutrient solution picture from one probe.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan the OnePen connect to my phone?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. It pairs over Bluetooth with the \u003ca href=\"https:\/\/edenic.io\/\" rel=\"noopener noreferrer\" style=\"color: #2c5530;\" target=\"_blank\"\u003eEdenic app\u003c\/a\u003e, letting you view readings remotely and keep the pen's software up to date.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat conductivity scales does the OnePen support?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt measures in EC, mS\/cm, CF, ppm 500 (TDS), and ppm 700, which can be verified for accuracy using a \u003ca href=\"\/products\/bluelab-277-ec-standard-solution-verify-ec-accuracy\"\u003e2.77 EC standard solution\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I know when the probe needs attention?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eA built-in probe health indicator flags when the probe needs cleaning or replacement, helping you catch problems before readings drift.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the OnePen probe replaceable?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, the \u003ca href=\"\/products\/bluelab-onepen-replacement-probe-extend-pen-life\"\u003epH, EC, and temperature probe is replaceable\u003c\/a\u003e, so a worn probe doesn't mean replacing the entire pen.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the Bluelab OnePen waterproof?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. It carries an IP68 rating for dust and water resistance, making it suitable for reservoir and grow room use.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473200935128,"sku":"PENONE","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_OnePen_1.png?v=1789576874"},{"product_id":"bluelab-truncheon-meter-ec-cf-ppm-no-calibration","title":"Bluelab Truncheon Nutrient Meter (0.2–3.6 EC)","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eBluelab Truncheon Nutrient Meter \u003cspan\u003e(0.2–3.6 EC)\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eTraditional conductivity meters mean regular calibration checks before every use — time growers stirring nutrient reservoirs don't have. While the \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003eBluelab Conductivity Pen\u003c\/a\u003e offers a compact alternative, the Bluelab Truncheon Nutrient Meter skips the calibration step entirely: dip it into solution and read CF, EC, PPM 500, or PPM 700 instantly, with automatic temperature compensation built in.\u003c\/p\u003e\n\u003cp\u003eBuilt tough and fully waterproof, the Truncheon's long-format design lets it double as a stirring tool while you mix and measure a reservoir at the same time. Automatic liquid detection triggers bright LED readouts, and its simple, no-calibration operation makes it easy to clean, disinfect, and hand off between grow rooms without downtime.\u003c\/p\u003e\n\u003cp\u003eAs the original industry-standard nutrient meter, the Truncheon has earned its reputation for reliability that holds up to constant use. For those running high-strength nutrient programs, the \u003ca href=\"\/products\/bluelab-commercial-truncheon-ec-up-to-6\"\u003eBluelab Commercial Truncheon Nutrient Meter\u003c\/a\u003e provides an expanded range up to 6.0 EC. There's no probe to swap, no solution to store, and no setup routine to walk new staff through — just a durable meter that delivers a consistent reading every time it touches solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 8px;\"\u003e\u003ciframe loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/GUTyR8Qv2CI?autoplay=1\u0026amp;mute=1\u0026amp;playsinline=1\u0026amp;loop=1\u0026amp;playlist=GUTyR8Qv2CI\u0026amp;controls=0\u0026amp;rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛡️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eRugged Waterproof Build\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eRobust, reliable construction stands up to daily reservoir use for the long haul.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eAutomatic Liquid Detection\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBright LEDs indicate readings automatically for simple, glanceable results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eLong-Format Design\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eDoubles as a stir stick, so you can mix and measure your reservoir at once.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e✅\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eNo Calibration Required\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSkip the setup — easy to clean and disinfect between uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔢\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMulti-Scale Readings\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eMeasures conductivity in EC, CF, PPM 500 (TDS), or PPM 700.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Range\u003c\/td\u003e\n\u003ctd\u003e0.2–3.6 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Range\u003c\/td\u003e\n\u003ctd\u003e2–36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Resolution\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Range\u003c\/td\u003e\n\u003ctd\u003e100–1,800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Resolution\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Range\u003c\/td\u003e\n\u003ctd\u003e140–2,520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Resolution\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Accuracy\u003c\/td\u003e\n\u003ctd\u003e±70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eNutrient solution, 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e3x AA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Truncheon_Nutrient_Meter_Manual.pdf?v=1789577303\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eTruncheon Nutrient Meter Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Bluelab Truncheon Nutrient Meter is covered by a 5-year limited warranty.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the Truncheon need calibration?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eNo. The Truncheon requires no calibration — simply dip it into your nutrient solution and read the result directly off the LED display. You can periodically verify your tool's accuracy using \u003ca href=\"\/products\/bluelab-277-ec-standard-solution-verify-ec-accuracy\"\u003eBluelab 2.77 EC Conductivity Standard Solution\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat can the Truncheon measure?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt reads nutrient concentration in EC, CF, PPM 500 (TDS), or PPM 700. For growers who also need to monitor acidity, pairing this with a \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003eBluelab pH Pen\u003c\/a\u003e ensures all critical water parameters are covered.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the Truncheon waterproof?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. It's built with a fully waterproof, rugged housing designed for repeated dunking and daily reservoir use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the reading adjust for temperature automatically?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. Readings are automatically compensated for temperature, so you get an accurate result without a separate correction step.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use the Truncheon to stir my reservoir while measuring?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. Its long-format design lets you mix and measure your nutrient solution at the same time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat battery does the Truncheon use?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt runs on 3x AA alkaline batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473235112152,"sku":"TRUNV2","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Truncheon_Nutrient_Meter_1_c0ac5eed-3688-4313-a219-842f591b0571.png?v=1789577820"},{"product_id":"bluelab-ph-pen-compact-ph-temp-reader-floats","title":"Bluelab pH Pen - Waterproof pH \u0026 Temp Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\u003ch2\u003eBluelab pH Pen - Waterproof pH \u0026amp; Temp Meter\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eGrabbing an accurate pH reading shouldn't require a full lab setup. The Bluelab pH Pen delivers fast, reliable pH and temperature readings in a compact handheld design, helping growers keep nutrient uptake on track without slowing down their workflow.\u003c\/p\u003e\n\u003cp\u003eA double-junction pH probe drives consistent accuracy, while a bright backlit display keeps results easy to read in any lighting. Simple 2-point calibration with a built-in 30-day reminder keeps the pen dialed in over time, and a fully waterproof build means it floats rather than sinks if it ends up in your reservoir.\u003c\/p\u003e\n\u003cp\u003eFor growers who want a complete measurement system, the pH Pen pairs naturally with a \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003eBluelab Conductivity Pen\u003c\/a\u003e—or you can find both together in the \u003ca href=\"\/products\/bluelab-ph-ec-starter-pack-meters-solutions-care-kit\"\u003eBluelab pH and Conductivity Starter Pack\u003c\/a\u003e. For those seeking advanced features, the \u003ca href=\"\/products\/bluelab-onepen-ph-ec-temp-meter-bluetooth-connected\"\u003eBluelab OnePen\u003c\/a\u003e offers 3-in-1 pH, EC, and temperature testing with Bluetooth connectivity.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 8px;\"\u003e\u003ciframe loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/dBNePsATNFA?autoplay=1\u0026amp;mute=1\u0026amp;playsinline=1\u0026amp;loop=1\u0026amp;playlist=dBNePsATNFA\u0026amp;controls=0\u0026amp;rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;} .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📱\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eCompact Handheld Design\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSized for convenient one-handed use anywhere in the grow room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBacklit Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBright, easy-to-read screen keeps readings clear in any lighting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔬\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eDouble-Junction pH Probe\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eDelivers accurate, consistent pH measurements reading after reading.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚙️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eQuick 2-Point Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBuilt-in 30-day reminder keeps the pen accurate without guesswork.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eDual Temperature Units\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eReads temperature in °C or °F to fit your preferred workflow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛟\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eWaterproof \u0026amp; Floats\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eFully waterproof build floats in any solution instead of sinking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBluelab pH Pen\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003eBluelab pH 7.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003eBluelab pH 4.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl Storage Solution\u003c\/a\u003e (18ml \/ 0.6fl oz)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0–14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e1°C \/ 1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eNutrient solution, 0.2 EC and above; 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_pH_Pen_Manual.pdf?v=1789577953\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003epH Pen Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Bluelab pH Pen is covered by a 1-year limited warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the Bluelab pH Pen require calibration?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, but it's quick — a simple 2-point calibration, with a built-in 30-day reminder so you always know when it's due.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the pH Pen waterproof?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. It's fully waterproof and actually floats if dropped in a reservoir, rather than sinking.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan the pH Pen read temperature too?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. It displays temperature alongside pH, and you can switch between °C and °F.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's included with the pH Pen?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eEach pen ships with single-use \u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003epH 7.0\u003c\/a\u003e and \u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003epH 4.0\u003c\/a\u003e calibration solution sachets and a \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl storage solution\u003c\/a\u003e to keep the probe ready between uses.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat temperature range can the pH Pen be used in?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt operates and reads accurately between 32–122°F (0–50°C). Avoid using or storing it outside this range.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's the difference between the pH Pen and the pH PenPlus?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe pH Pen has a fixed probe, while the \u003ca href=\"\/products\/bluelab-ph-penplus-ph-temp-meter-replaceable-probe\"\u003eBluelab pH PenPlus\u003c\/a\u003e features a screw-cap replaceable probe for easier long-term maintenance.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473262375128,"sku":"PENPH","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_pH_Pen_1.png?v=1789578039"},{"product_id":"bluelab-conductivity-pen-ec-temp-reader-ready-to-use","title":"Bluelab Conductivity Pen - EC \u0026 Temp Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eBluelab Conductivity Pen - EC \u0026amp; Temp Meter\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eNutrient burn and stunted growth often trace back to conductivity levels drifting out of range unnoticed. The Bluelab Conductivity Pen keeps that from happening, delivering fast, accurate EC and temperature readings so you can dial in nutrient strength before it becomes a problem.\u003c\/p\u003e\n\u003cp\u003eThe pen ships factory calibrated and ready to use immediately — no setup step standing between you and a reading. If you prefer a meter that never requires calibration, the \u003ca href=\"\/products\/bluelab-truncheon-meter-ec-cf-ppm-no-calibration\"\u003eBluelab Truncheon\u003c\/a\u003e is an excellent alternative. Automatic Temperature Compensation (ATC) keeps EC values accurate across changing solution temperatures, while a bright backlit display and compact handheld design make it easy to check readings anywhere in the grow room.\u003c\/p\u003e\n\u003cp\u003eLike the rest of Bluelab's handheld lineup, it's fully waterproof and floats rather than sinks if it ends up in your reservoir. Pairing it with a dedicated \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003eBluelab pH Pen\u003c\/a\u003e rounds out a complete nutrient monitoring system, covering both sides of solution health without extra bulk.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 8px;\"\u003e\u003ciframe loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/qNAJld5YbRE?autoplay=1\u0026amp;mute=1\u0026amp;playsinline=1\u0026amp;loop=1\u0026amp;playlist=qNAJld5YbRE\u0026amp;controls=0\u0026amp;rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📱\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eCompact Handheld Design\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSized for convenient one-handed use anywhere in the grow room.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBacklit Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBright, easy-to-read screen keeps readings clear in any lighting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔢\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMulti-Scale Readings\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eMeasures conductivity in EC, ppm 500 (TDS), or ppm 700.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e✅\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eFactory Calibrated\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eReady to use out of the box; maintain precision with \u003ca href=\"\/products\/bluelab-277-ec-standard-solution-verify-ec-accuracy\"\u003eBluelab 2.77 EC Standard Solution\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eDual Temperature Units\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eReads temperature in °C or °F to fit your preferred workflow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛟\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eWaterproof \u0026amp; Floats\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eFully waterproof build floats in any solution instead of sinking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e1°C \/ 1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Range\u003c\/td\u003e\n\u003ctd\u003e0.0–10.0 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Range\u003c\/td\u003e\n\u003ctd\u003e0–5,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Resolution\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Range\u003c\/td\u003e\n\u003ctd\u003e0–7,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Resolution\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Accuracy\u003c\/td\u003e\n\u003ctd\u003e±70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eNutrient solution, 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Conductivity_Pen_Manual.pdf?v=1789578280\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eConductivity Pen Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Bluelab Conductivity Pen is covered by a 1-year limited warranty.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the Conductivity Pen need calibration before use?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eNo. It ships factory calibrated and ready to use straight out of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat conductivity scales does it measure?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt reads in EC, ppm 500 (TDS), or ppm 700, so you can work in whichever scale your feeding program uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes it account for temperature automatically?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. Automatic Temperature Compensation (ATC) adjusts EC readings for solution temperature, so you get an accurate result without extra steps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the Conductivity Pen waterproof?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. It's fully waterproof and floats if dropped in a reservoir rather than sinking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat temperature range can it be used in?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt operates and reads accurately between 32–122°F (0–50°C). Avoid using or storing it outside this range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use this alongside a pH meter for full nutrient monitoring?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. Pairing the Conductivity Pen with a \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003eBluelab pH Pen\u003c\/a\u003e or the \u003ca href=\"\/products\/bluelab-ph-ec-starter-pack-meters-solutions-care-kit\"\u003eBluelab pH and Conductivity Starter Pack\u003c\/a\u003e gives you a complete pH and EC measurement system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473283707096,"sku":"PENCON","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Conductivity_Pen_1.png?v=1789578651"},{"product_id":"bluelab-combo-meter-replaceable-ph-ec-probes-portable","title":"Bluelab Combo Meter - Portable 3-in-1 pH, EC \u0026 Temp Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eBluelab Combo Meter - Portable 3-in-1 pH, EC \u0026amp; Temp Meter\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eCarrying separate pH and EC meters into the field means extra gear, extra batteries, and readings that never line up in time. The Bluelab Combo Meter solves this with a single, portable 3-in-1 unit that measures pH, conductivity (EC), and temperature in nutrient reservoirs, run-off, and water supply. If you prefer a more compact, Bluetooth-enabled alternative, the \u003ca href=\"\/products\/bluelab-onepen-ph-ec-temp-meter-bluetooth-connected\"\u003eBluelab OnePen\u003c\/a\u003e offers similar 3-in-1 functionality in a pocket-sized format.\u003c\/p\u003e\n\u003cp\u003eIndividual, replaceable probes give the Combo Meter lasting value: a \u003ca href=\"\/products\/bluelab-ph-probe-double-junction-bnc-connector\"\u003eBNC-connection pH probe\u003c\/a\u003e you can swap without replacing the whole meter, and a factory-calibrated EC probe that's ready to use immediately. A \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl-filled pH probe cap\u003c\/a\u003e keeps the probe hydrated between uses, and 2-metre (6.6ft) cables let you take readings in hard-to-reach reservoirs and tanks. For those measuring directly in substrate, the \u003ca href=\"\/products\/bluelab-combo-meter-soil-ph-probe-ec-temp-on-the-go\"\u003eBluelab Combo Meter with Soil pH Probe\u003c\/a\u003e offers specialized functionality for media-based testing.\u003c\/p\u003e\n\u003cp\u003eDay-to-day use stays simple: a clear backlit display and easy-to-use buttons make readings fast to check, and 2-point pH calibration with a 30-day reminder keeps accuracy on track. Battery-powered and portable, the Combo Meter goes wherever your grow operation does.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔬\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eReplaceable pH Probe\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eA \u003ca href=\"\/products\/bluelab-ph-probe-double-junction-bnc-connector\"\u003eBNC-connection probe\u003c\/a\u003e swaps out without replacing the entire meter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e✅\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eFactory-Calibrated EC Probe\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eReady to use immediately, right out of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eHydrated Probe Cap\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eThe \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl-filled pH probe cap\u003c\/a\u003e keeps the probe hydrated between uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e2m \/ 6.6ft Probe Cables\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eReach measurements in hard-to-access reservoirs and tanks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚙️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eQuick 2-Point Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBuilt-in 30-day reminder keeps pH readings accurate over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBacklit Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eClear screen and easy-to-use buttons make readings fast to check.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBluelab Combo Meter with Conductivity \/ Temperature Probe\u003c\/li\u003e\n\u003cli\u003eBluelab pH Probe\u003c\/li\u003e\n\u003cli\u003eBluelab pH Probe Holder with Suction Cup\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003eBluelab pH 7.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003eBluelab pH 4.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl Storage Solution\u003c\/a\u003e (18ml \/ 0.6fl oz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0–14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e1°C \/ 1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Range\u003c\/td\u003e\n\u003ctd\u003e0.0–9.9 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Range\u003c\/td\u003e\n\u003ctd\u003e0.0–99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Resolution\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Range\u003c\/td\u003e\n\u003ctd\u003e0–4,950\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Resolution\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Range\u003c\/td\u003e\n\u003ctd\u003e0–6,930\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Resolution\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Accuracy\u003c\/td\u003e\n\u003ctd\u003e±70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eNutrient solution, 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e2x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Combo_Meter_Manual.pdf?v=1789578788\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eCombo Meter Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Bluelab Combo Meter is covered by a 5-year limited warranty.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the pH probe on the Combo Meter replaceable?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. It uses a \u003ca href=\"\/products\/bluelab-ph-probe-double-junction-bnc-connector\"\u003eBNC-connection pH probe\u003c\/a\u003e that can be swapped out without replacing the entire meter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the EC probe need calibration?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eNo. The conductivity probe is factory-calibrated and ready to use immediately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat conductivity scales does the Combo Meter support?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt measures in EC, CF, ppm 500 (TDS), or ppm 700, so you can work in whichever scale your feeding program uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow far can I reach with the Combo Meter's cables?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe probes have 2-metre (6.6ft) cables, letting you take readings in reservoirs and tanks that are hard to access directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use the Combo Meter outside of hydroponic reservoirs?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. It's built to measure pH, EC, and temperature in nutrient reservoirs, run-off, and general water supply, and is portable enough to use on the go.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I keep the pH probe in good condition between uses?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe pH probe comes with a cap that should be filled with \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl storage solution\u003c\/a\u003e to keep it hydrated when not in use, helping extend its accuracy and lifespan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473289638104,"sku":"METCOM","price":319.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Combo_Meter_1.webp?v=1789578929"},{"product_id":"bluelab-combo-meter-soil-ph-probe-ec-temp-on-the-go","title":"Bluelab Combo Meter with Soil pH Probe","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\u003ch2\u003eBluelab Combo Meter with Soil pH Probe \u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eStandard pH probes are built for solution, not soil — pressing one into substrate risks damage and gives you a slow, unreliable reading. The Bluelab Combo Meter with Soil pH Probe solves this by pairing the portable \u003ca href=\"\/products\/bluelab-combo-meter-replaceable-ph-ec-probes-portable\"\u003eBluelab Combo Meter\u003c\/a\u003e with a dedicated \u003ca href=\"\/products\/bluelab-soil-ph-probe-soil-substrate-solution\"\u003eLeap pH Probe\u003c\/a\u003e designed specifically for direct insertion into any growing medium.\u003c\/p\u003e\n\u003cp\u003eA Dibber (Auger) makes inserting the Soil pH Probe fast and damage-free, and the probe stays safely stored and ready to measure the moment you need it. The included Conductivity Probe is calibration-free, so EC readings are accurate from the first use, and Automatic Temperature Compensation keeps every reading correct regardless of substrate or solution temperature.\u003c\/p\u003e\n\u003cp\u003eA 2-metre cable reaches into hard-to-access containers and beds, and a bright backlit display keeps results easy to read wherever you're working. Conductivity scales are fully customizable — EC, CF, PPM 500 (TDS), or PPM 700 — with temperature displayed in °C or °F, so the meter adapts to however your operation already tracks nutrients.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌱\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eSoil pH Probe with Dibber\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSafely stored and ready to measure any substrate straight away.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e✅\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eCalibration-Free Conductivity Probe\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eAccurate EC readings from the first use, with no setup step.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e2-Metre Reach Cable\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eTake readings in hard-to-reach containers and beds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eAutomatic Temperature Compensation\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eKeeps readings accurate across changing substrate and solution temperatures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔢\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eCustomizable Scales\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSwitch between EC, CF, PPM 500, or PPM 700, and °C or °F.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBacklit Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSimple, easy-to-clean design captures every measurement with ease.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBluelab Combo Meter with Conductivity \/ Temperature Probe\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/bluelab-soil-ph-probe-soil-substrate-solution\"\u003eBluelab Leap pH Probe\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eDibber (Auger)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003eBluelab pH 7.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003eBluelab pH 4.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl oz, single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl Storage Solution\u003c\/a\u003e (18ml \/ 0.6fl oz)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0–14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e1°C \/ 1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Range\u003c\/td\u003e\n\u003ctd\u003e0.0–9.9 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Range\u003c\/td\u003e\n\u003ctd\u003e0.0–99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Resolution\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Range\u003c\/td\u003e\n\u003ctd\u003e0–4,950\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Resolution\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Range\u003c\/td\u003e\n\u003ctd\u003e0–6,930\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Resolution\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Accuracy\u003c\/td\u003e\n\u003ctd\u003e±70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eNutrient solution, 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e2x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Combo_Meter_Plus_Manual.pdf?v=1789579105\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eCombo Meter with Soil pH Probe Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Bluelab Combo Meter with Soil pH Probe is covered by a 5-year limited warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow does the Soil pH Probe work with the included Dibber?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe Dibber (Auger) creates a clean opening in your substrate, letting you insert the Soil pH Probe quickly and without damaging the probe tip.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the conductivity probe need calibration?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNo. The included Conductivity Probe is calibration-free and gives accurate EC readings right away.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow long is the probe cable?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe cable measures 2 metres, giving you enough reach to test hard-to-access containers and beds without moving the meter itself.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I change which units the meter displays?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. Conductivity can be shown in EC, CF, PPM 500 (TDS), or PPM 700, and temperature in °C or °F.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's the difference between this and the standard Bluelab Combo Meter?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThis version pairs the Combo Meter with a dedicated \u003ca href=\"\/products\/bluelab-soil-ph-probe-soil-substrate-solution\"\u003eSoil pH Probe\u003c\/a\u003e and Dibber for direct substrate testing, rather than the solution-focused pH probe included with the standard \u003ca href=\"\/products\/bluelab-combo-meter-replaceable-ph-ec-probes-portable\"\u003eBluelab Combo Meter\u003c\/a\u003e. For growers requiring moisture data as well, the \u003ca href=\"\/products\/bluelab-pulse-meter-root-zone-ec-moisture-temp\"\u003eBluelab Pulse Meter\u003c\/a\u003e is a recommended alternative.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the meter adjust automatically for temperature?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. Automatic Temperature Compensation keeps readings accurate as substrate or solution temperature changes.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473310675160,"sku":"METCOMPLUS","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Combo_Meter_Plus_1.png?v=1789579200"},{"product_id":"bluelab-ph-ec-starter-pack-meters-solutions-care-kit","title":"Bluelab pH and Conductivity Starter Pack - Complete pH, EC \u0026 Care Kit","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\u003ch2\u003eBluelab pH and Conductivity Starter Pack - Complete pH, EC \u0026amp; Care Kit\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003ePiecing together a full measurement setup one product at a time means separate purchases for a pH meter, an EC meter, and the calibration and care supplies each one needs. The Bluelab pH and Conductivity Starter Pack solves this by bundling both the \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003eBluelab pH Pen\u003c\/a\u003e and the \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003eBluelab Conductivity Pen\u003c\/a\u003e into a single complete handheld measurement system, ready to go from the moment it arrives.\u003c\/p\u003e\n\u003cp\u003epH, conductivity (EC), and temperature are the three fundamentals that drive plant health: EC shows total nutrient concentration in solution, pH determines how well those nutrients get absorbed, and temperature affects growth rate and structure. This kit covers all three — the \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003eConductivity Pen\u003c\/a\u003e is factory-calibrated and ready to use immediately, while the \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003epH Pen\u003c\/a\u003e calibrates quickly with a simple 2-point process for accurate, repeatable nutrient control.\u003c\/p\u003e\n\u003cp\u003eA full Bluelab Probe Care Kit rounds out the pack, with \u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003epH 4.0\u003c\/a\u003e, \u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003epH 7.0\u003c\/a\u003e, and \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl storage solution\u003c\/a\u003e sachets for calibrating and storing the pH Pen, plus a \u003ca href=\"\/products\/bluelab-277-ec-standard-solution-verify-ec-accuracy\"\u003e2.77 EC standard solution\u003c\/a\u003e for testing the Conductivity Pen after cleaning. Dedicated probe cleaners, a chamois, and a toothbrush are included to keep both pens performing accurately for the long haul. Both pens offer flexible measurement units — EC, CF, PPM 500 (TDS), or PPM 700 for conductivity, and °C or °F for temperature — so the kit fits however your operation already tracks nutrients.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 8px;\"\u003e\u003ciframe loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/MSmLnQsQjXQ?autoplay=1\u0026amp;mute=1\u0026amp;playsinline=1\u0026amp;loop=1\u0026amp;playlist=MSmLnQsQjXQ\u0026amp;controls=0\u0026amp;rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📦\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eComplete Measurement System\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBoth pH and Conductivity Pens included in one bundle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e✅\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eReady to Use EC Pen\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eConductivity Pen is factory-calibrated straight out of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚙️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eQuick pH Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSimple 2-point calibration keeps the pH Pen accurate and reliable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🧼\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eFull Probe Care Kit Included\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eCleaners, chamois, and toothbrush keep both pens performing like new.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🧪\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eCalibration Solutions Included\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003epH 4.0, pH 7.0, KCl, and EC standard sachets ready to go.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔢\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eCustomizable Units\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSwitch between EC, CF, PPM 500, or PPM 700, and °C or °F.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1x \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003eBluelab pH Pen\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e1x \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003eBluelab Conductivity Pen\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e1x Toothbrush\u003c\/li\u003e\n\u003cli\u003e1x Chamois\u003c\/li\u003e\n\u003cli\u003e1x Bluelab pH Probe Cleaner (30ml \/ 1fl.oz.)\u003c\/li\u003e\n\u003cli\u003e1x Bluelab Conductivity Probe Cleaner (30ml \/ 1fl.oz.)\u003c\/li\u003e\n\u003cli\u003e2x \u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003eBluelab pH 7.0 Calibration Solution\u003c\/a\u003e, single-use (18ml \/ 0.6fl.oz.)\u003c\/li\u003e\n\u003cli\u003e2x \u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003eBluelab pH 4.0 Calibration Solution\u003c\/a\u003e, single-use (18ml \/ 0.6fl.oz.)\u003c\/li\u003e\n\u003cli\u003e2x \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl Storage Solution\u003c\/a\u003e (18ml \/ 0.6fl.oz.)\u003c\/li\u003e\n\u003cli\u003e2x \u003ca href=\"\/products\/bluelab-277-ec-standard-solution-verify-ec-accuracy\"\u003eBluelab 2.77 EC Conductivity Standard\u003c\/a\u003e, single-use (18ml \/ 0.6fl.oz.)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003ch5 style=\"font-weight: bold; margin-bottom: 10px;\"\u003eBluelab pH Pen\u003c\/h5\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0–14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch5 style=\"font-weight: bold; margin-bottom: 10px;\"\u003eBluelab Conductivity Pen\u003c\/h5\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Range\u003c\/td\u003e\n\u003ctd\u003e0.0–10.0 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_pH_Pen_Manual.pdf?v=1789577953\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003epH Pen Manual\u003c\/span\u003e \u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Conductivity_Pen_Manual.pdf?v=1789578280\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eConductivity Pen Manual\u003c\/span\u003e \u003c\/a\u003e\n\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Bluelab pH and Conductivity Starter Pack is covered by a 1-year limited warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's included in the Starter Pack?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe kit includes a \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003eBluelab pH Pen\u003c\/a\u003e, a \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003eConductivity Pen\u003c\/a\u003e, and a full Probe Care Kit with calibration solutions, cleaners, and cleaning tools.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDo I need to calibrate both pens before use?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe Conductivity Pen is factory-calibrated and ready to use right away. The pH Pen needs a quick 2-point calibration, which the included solutions make simple.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat measurement units can I use with this kit?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eConductivity can be read in EC, CF, PPM 500 (TDS), or PPM 700, and temperature in °C or °F on both pens.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I care for the probes after use?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe included pH and Conductivity Probe Cleaners, along with the chamois and toothbrush, keep both probes clean and performing accurately between uses.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's the 2.77 EC standard solution used for?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt's used to test the accuracy of the \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003eConductivity Pen\u003c\/a\u003e after cleaning, confirming that the \u003ca href=\"\/products\/bluelab-277-ec-standard-solution-verify-ec-accuracy\"\u003e2.77 EC standard solution\u003c\/a\u003e readings are still on target.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs this cheaper than buying the pH Pen and Conductivity Pen separately?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe Starter Pack bundles both pens with a full care kit, giving you everything needed to start measuring accurately in a single purchase.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473353830616,"sku":"PENSTP","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_pH_Conductivity_Starter_Pack_1.png?v=1789580203"},{"product_id":"bluelab-orp-meter-track-water-disinfection-power","title":"Bluelab ORP Meter - Water Quality \u0026 Disinfection Monitor","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eBluelab ORP Meter - Water Quality \u0026amp; Disinfection Monitor\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eWhile \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003epH\u003c\/a\u003e and \u003ca href=\"\/products\/bluelab-truncheon-meter-ec-cf-ppm-no-calibration\"\u003eEC readings\u003c\/a\u003e tell you about nutrient balance, they say nothing about whether your water is actually clean. Contamination, biofouling, and pathogen growth can quietly undermine a system even when nutrient levels look perfect. The Bluelab ORP Meter closes that gap by directly measuring Oxidation-Reduction Potential — the disinfecting power of your water — so you can catch water quality problems before they cost you a crop.\u003c\/p\u003e\n\u003cp\u003eA \u003ca href=\"\/products\/bluelab-orp-probe-platinum-electrode-ceramic-diaphragm\"\u003ereplaceable ORP Probe\u003c\/a\u003e with a BNC connection means a worn sensor doesn't mean replacing the whole meter, and it requires no calibration to stay accurate. A \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl-filled probe cap\u003c\/a\u003e keeps the probe hydrated between uses, and a 2-metre (6.6ft) cable lets you take readings in reservoirs and tanks that are hard to reach directly.\u003c\/p\u003e\n\u003cp\u003eA higher ORP reading signals a stronger oxidative environment and more effective disinfection against bacteria, algae, and pathogens, making it a key metric for compliance with water quality standards as well as day-to-day system health. For growers who want a fuller picture, the meter offers dual compatibility with a \u003ca href=\"\/products\/bluelab-ph-probe-double-junction-bnc-connector\"\u003eBluelab pH probe\u003c\/a\u003e (sold separately), and an auto-off function conserves battery life between checks.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e    \u003cdiv class=\"feature-card\"\u003e      \u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔬\u003c\/span\u003e      \u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eReplaceable ORP Probe\u003c\/h5\u003e      \u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eBNC-connection \u003ca href=\"\/products\/bluelab-orp-probe-platinum-electrode-ceramic-diaphragm\"\u003eprobe\u003c\/a\u003e swaps out without replacing the entire meter.\u003c\/p\u003e    \u003c\/div\u003e    \u003cdiv class=\"feature-card\"\u003e      \u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e✅\u003c\/span\u003e      \u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eNo Calibration Required\u003c\/h5\u003e      \u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eThe ORP probe stays accurate without a setup step before every use.\u003c\/p\u003e    \u003c\/div\u003e    \u003cdiv class=\"feature-card\"\u003e      \u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e      \u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eKCl-Filled Probe Cap\u003c\/h5\u003e      \u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eKeeps the probe hydrated and ready with \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003estorage solution\u003c\/a\u003e between measurements.\u003c\/p\u003e    \u003c\/div\u003e    \u003cdiv class=\"feature-card\"\u003e      \u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e      \u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003e2m \/ 6.6ft Reach Cable\u003c\/h5\u003e      \u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eTake readings in hard-to-reach reservoirs and tanks.\u003c\/p\u003e    \u003c\/div\u003e    \u003cdiv class=\"feature-card\"\u003e      \u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔀\u003c\/span\u003e      \u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eDual pH Compatibility\u003c\/h5\u003e      \u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eOptionally use a \u003ca href=\"\/products\/bluelab-ph-probe-double-junction-bnc-connector\"\u003eBluelab pH probe\u003c\/a\u003e (sold separately) for fuller monitoring.\u003c\/p\u003e    \u003c\/div\u003e    \u003cdiv class=\"feature-card\"\u003e      \u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔋\u003c\/span\u003e      \u003ch5 style=\"font-size:1.1em;font-weight:bold;color:#333;margin:0.75rem 0 0.5rem 0;\"\u003eAuto-Off Function\u003c\/h5\u003e      \u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eConserves battery life automatically between measurements.\u003c\/p\u003e    \u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBluelab ORP Meter\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-orp-probe-platinum-electrode-ceramic-diaphragm\"\u003eBluelab ORP Probe\u003c\/a\u003e with storage cap\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eBluelab KCl Storage Solution\u003c\/a\u003e Sachet (18ml \/ 0.6fl.oz.)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e  \u003ctable class=\"styled-spec-table\"\u003e    \u003cthead\u003e      \u003ctr\u003e        \u003cth\u003eSpecification\u003c\/th\u003e        \u003cth\u003eValue\u003c\/th\u003e      \u003c\/tr\u003e    \u003c\/thead\u003e    \u003ctbody\u003e      \u003ctr\u003e        \u003ctd\u003eORP Range\u003c\/td\u003e        \u003ctd\u003e±1000 mV\u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e        \u003ctd\u003eORP Resolution\u003c\/td\u003e        \u003ctd\u003e1 mV\u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e        \u003ctd\u003eORP Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e        \u003ctd\u003e±5 mV\u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e        \u003ctd\u003epH Range (with optional pH probe, sold separately)\u003c\/td\u003e        \u003ctd\u003e0.0–14.0\u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e        \u003ctd\u003epH Resolution\u003c\/td\u003e        \u003ctd\u003e0.1\u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e        \u003ctd\u003epH Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e        \u003ctd\u003e±0.1\u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e        \u003ctd\u003eOperating Environment\u003c\/td\u003e        \u003ctd\u003eNutrient solution, 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e      \u003c\/tr\u003e      \u003ctr\u003e        \u003ctd\u003ePower\u003c\/td\u003e        \u003ctd\u003e2x AAA alkaline battery\u003c\/td\u003e      \u003c\/tr\u003e    \u003c\/tbody\u003e  \u003c\/table\u003e\n\u003c\/div\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_ORP_Meter_Manual.pdf?v=1789580399\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\"\u003e\u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003eORP Meter Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Bluelab ORP Meter is covered by a 5-year limited warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does ORP measure, and why does it matter?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eORP (Oxidation-Reduction Potential) measures the disinfecting power of your water. A higher reading means a stronger oxidative environment and more effective protection against bacteria, algae, and pathogens.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the ORP probe need calibration?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eNo. The ORP probe requires no calibration, so you can take accurate readings without a setup step every time.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan this meter also read pH?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes, with a \u003ca href=\"\/products\/bluelab-ph-probe-double-junction-bnc-connector\"\u003eBluelab pH probe\u003c\/a\u003e attached (sold separately), giving you dual pH and ORP monitoring from one meter.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the ORP probe replaceable?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. It uses a BNC connection, so a worn \u003ca href=\"\/products\/bluelab-orp-probe-platinum-electrode-ceramic-diaphragm\"\u003ereplacement ORP probe\u003c\/a\u003e can be swapped out without replacing the entire meter.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow far does the probe cable reach?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe cable measures 2 metres (6.6ft), letting you test reservoirs and tanks that are hard to reach directly.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhy should I monitor ORP alongside pH and EC?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eORP catches water quality risks like contamination and biofouling that \u003ca href=\"\/products\/bluelab-combo-meter-replaceable-ph-ec-probes-portable\"\u003epH and EC readings\u003c\/a\u003e don't reveal, helping protect equipment and crop yields while supporting water quality compliance.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473394102488,"sku":"METORP","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_ORP_Meter_1.png?v=1789580500"},{"product_id":"bluelab-pulse-meter-root-zone-ec-moisture-temp","title":"Bluelab Pulse Multimedia EC\/MC Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eBluelab Pulse Multimedia EC\/MC Meter\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003ePour-throughs and lab extractions are slow, messy, and only tell you about the runoff — not what's actually happening at the root zone where it counts. The Bluelab Pulse Meter solves this with a Bluetooth soil sensor that delivers moisture, conductivity (EC), and temperature readings straight from the root zone in a single click, providing a more comprehensive profile than a standalone \u003ca href=\"\/products\/bluelab-soil-ph-meter-speartip-probe-root-zone-ph\"\u003edirect-to-substrate pH meter\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Pulse Meter pairs with the Bluelab Pulse App over Bluetooth 4.0+ on Android or iOS, with no cables or calibration hassle standing between you and a reading. On-device LEDs give instant in- or out-of-range indication, so you know where you stand before you even open the app. It works across most growing substrates and \u003ca href=\"\/products\/bluelab-truncheon-meter-ec-cf-ppm-no-calibration\"\u003enutrient solution\u003c\/a\u003e setups, though it isn't suited to media with large voids like Perlite or media that can distort permanently, like Rockwool.\u003c\/p\u003e\n\u003cp\u003eTake a reading from your healthiest plant and use it as a benchmark — then replicate those root zone conditions, especially moisture, across your crop to cut watering guesswork and reduce variability. The Pulse App lets you view, store, and analyze every measurement over time, offering a level of data logging similar to the remote alerts found on the \u003ca href=\"\/products\/bluelab-guardian-monitor-wifi-alarms-edenic-app-alerts\"\u003eBluelab Guardian Monitor Wi-Fi\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 8px;\"\u003e\u003ciframe loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/O3tc5evHpLs?autoplay=1\u0026amp;mute=1\u0026amp;playsinline=1\u0026amp;loop=1\u0026amp;playlist=O3tc5evHpLs\u0026amp;controls=0\u0026amp;rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚡\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eOne-Click Multi-Reading\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eMeasures conductivity (EC), moisture, and temperature simultaneously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔩\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e8\"\/200mm Stainless Probes\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eRobust, long-format probes reach deeper for true root zone insight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌱\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMulti-Substrate Compatible\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eWorks across most growing media and nutrient solution setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eOn-Device Range Indicators\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLEDs show in- or out-of-range readings instantly, no app required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📱\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBluelab Pulse App\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eView, store, and analyze every measurement over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌐\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMulti-Language Support\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eApp available in English, Spanish, Dutch, German, and Korean.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBluelab Pulse Meter\u003c\/li\u003e\n\u003cli\u003eDepth Gauge and Probe Tip Cover\u003c\/li\u003e\n\u003cli\u003eMiniature Phillips Screwdriver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e41–104°F (5–40°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Range\u003c\/td\u003e\n\u003ctd\u003e0–15 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Accuracy\u003c\/td\u003e\n\u003ctd\u003e0.0–5.0: ±0.2 | 5.0–15.0: ±8% (measured in \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl solution\u003c\/a\u003e at 20°C\/68°F in a 270mm high, 10L\/2.6 gallon container)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMoisture (MCvol) Range\u003c\/td\u003e\n\u003ctd\u003e5%–70% (mixed media and coir)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMoisture (MCvol) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±5% (measured in coir, bark, peat, and pumice mixed media, calibrated at 20°C in a 150mm dia × 250mm high vessel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eMinimum pot size 2L\/0.5 gallon; pairs with Android or iOS via Bluetooth 4.0+; not for use in media with large voids (e.g. Perlite) or media that can be permanently distorted (e.g. Rockwool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1x AA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Pulse_Multimedia_EC-MC_Meter_Manual.pdf?v=1789580881\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003ePulse Meter Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Bluelab Pulse Multimedia EC\/MC Meter is covered by a 1-year limited warranty.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does the Bluelab Pulse Meter measure?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt measures root zone conductivity (EC), moisture, and temperature simultaneously in a single click—offering a specialized handheld substrate companion to the \u003ca href=\"\/products\/bluelab-onepen-ph-ec-temp-meter-bluetooth-connected\"\u003eBluelab OnePen\u003c\/a\u003e used for water testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat growing media can I use it in?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt works across most substrates and nutrient solution, but it's not suited to media with large voids like Perlite or media that can be permanently distorted, like Rockwool.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I connect the Pulse Meter to my phone?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt pairs over Bluetooth 4.0+ with the Bluelab Pulse App on Android or iOS, letting you view, store, and analyze your measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I take my first reading?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eDownload the Pulse App, select your growing medium, and choose your healthiest plant to measure first. Use the built-in depth gauge for consistent probe placement, then press Measure on the device or in the app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat languages does the Pulse App support?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe app is available in English, Spanish, Dutch, German, and Korean.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I use the readings to guide watering and feeding decisions?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eMeasure your healthiest plant to set a benchmark, then compare other plants against it to decide whether to feed, flush, or adjust irrigation via an automated \u003ca href=\"\/products\/bluelab-pro-controller-wifi-multi-nutrient-dosing\"\u003emulti-nutrient dosing controller\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473412419800,"sku":"METPULSE","price":329.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Pulse_Multimedia_EC-MC_Meter_1.png?v=1789580999"},{"product_id":"bluelab-commercial-truncheon-ec-up-to-6","title":"Bluelab Commercial Truncheon Nutrient Meter (0–6 EC)","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eBluelab Commercial Truncheon Nutrient Meter (0–6 EC)\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eStandard nutrient meters top out well before commercial-strength feeding programs need them to — leaving growers guessing during high-EC growth stages. The Bluelab Commercial Truncheon Nutrient Meter solves this with a larger measurement scale built for hydroponic setups that require stronger nutrient solutions, reading up to 6.0 EC, 60 CF, 3,000 ppm 500, or 4,200 ppm 700.\u003c\/p\u003e\n\u003cp\u003eBuilt on the same trusted no-calibration design as the \u003ca href=\"\/products\/bluelab-truncheon-meter-ec-cf-ppm-no-calibration\"\u003eoriginal Truncheon Nutrient Meter\u003c\/a\u003e, it's fully waterproof for splashing, submersion, or a sink to the bottom of your reservoir. Automatic liquid detection triggers bright LED readouts, and the long-format body lets it double as a stirring tool while you mix and measure at the same time.\u003c\/p\u003e\n\u003cp\u003eRobust, easy to clean and disinfect, and backed by an industry-leading 5-year warranty, the Commercial Truncheon is built for daily use across demanding commercial operations. To ensure long-term precision in high-strength environments, we recommend verifying the device periodically with \u003ca href=\"\/products\/bluelab-277-ec-standard-solution-verify-ec-accuracy\"\u003eBluelab 2.77 EC Conductivity Standard Solution\u003c\/a\u003e. For those needing to track acidity alongside conductivity, the \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003eBluelab pH Pen\u003c\/a\u003e offers a compact, waterproof companion for complete reservoir management. Note: packaging may vary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 8px;\"\u003e\u003ciframe loading=\"lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/GUTyR8Qv2CI?autoplay=1\u0026amp;mute=1\u0026amp;playsinline=1\u0026amp;loop=1\u0026amp;playlist=GUTyR8Qv2CI\u0026amp;controls=0\u0026amp;rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📈\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eLarger Measurement Scale\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eReads up to 6.0 EC, 60 CF, 3,000 ppm 500, or 4,200 ppm 700.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🛡️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eFully Waterproof\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSplash, submerge, or sink it — built to handle it all.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eAutomatic Liquid Detection\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBright LEDs indicate readings automatically for simple, glanceable results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eLong-Format Design\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eDoubles as a stir stick, so you can mix and measure at once.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e✅\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eNo Calibration Required\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSkip the setup — easy to clean and disinfect between uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔢\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eAll Conductivity Scales\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eMeasures in EC, CF, PPM 500 (TDS), and PPM 700.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Range\u003c\/td\u003e\n\u003ctd\u003e0.2–6.0 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity (EC) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Range\u003c\/td\u003e\n\u003ctd\u003e4–60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Resolution\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCF Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Range\u003c\/td\u003e\n\u003ctd\u003e200–3,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Resolution\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS (ppm 500) Accuracy\u003c\/td\u003e\n\u003ctd\u003e±50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Range\u003c\/td\u003e\n\u003ctd\u003e280–4,200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Resolution\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm 700 Accuracy\u003c\/td\u003e\n\u003ctd\u003e±70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eNutrient solution, 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e3x AA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Commercial_Truncheon_Nutrient_Meter_Manual.pdf?v=1789584047\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eCommercial Truncheon Nutrient Meter Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Bluelab Commercial Truncheon Nutrient Meter is covered by a 5-year limited warranty.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's the measurement range on the Commercial Truncheon?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt reads up to 6.0 EC, 60 CF, 3,000 ppm 500 (TDS), or 4,200 ppm 700 — a larger scale than the standard Truncheon, built for stronger commercial nutrient solutions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the Commercial Truncheon need calibration?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eNo. Simply dip it into your nutrient solution and read the result directly off the LED display — no calibration step required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow waterproof is this meter?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eFully waterproof — it's built to handle splashing, full submersion, or sinking to the bottom of a reservoir without issue.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's the difference between this and the standard Bluelab Truncheon?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe Commercial Truncheon reads a much wider range — up to 6.0 EC versus 3.6 EC on the \u003ca href=\"\/products\/bluelab-truncheon-meter-ec-cf-ppm-no-calibration\"\u003estandard Bluelab Truncheon\u003c\/a\u003e model — making it suited to stronger nutrient solutions used at certain growth stages.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I stir my reservoir while measuring?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. Its long-format design lets you mix and measure your nutrient solution at the same time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat battery does it use?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIt runs on 3x AA alkaline batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473628655832,"sku":"TRUNCOMV2","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Commercial_Truncheon_Nutrient_Meter_2.png?v=1790965827"},{"product_id":"bluelab-soil-ph-meter-speartip-probe-root-zone-ph","title":"Bluelab Soil pH Meter - Direct-to-Substrate pH \u0026 Temp Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\u003ch2\u003eBluelab Soil pH Meter - Direct-to-Substrate pH \u0026amp; Temp Meter\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eStandard \u003ca href=\"\/products\/bluelab-ph-pen-compact-ph-temp-reader-floats\"\u003epH pens\u003c\/a\u003e are built for solution, not substrate — pushing one into soil or coco risks damage and gives you a slow, unreliable read. The Bluelab Soil pH Meter solves this with a toughened speartip probe designed for direct insertion into growing media, delivering fast, precise pH readings straight from the root zone in hydroponics, soil, and coco coir alike.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/bluelab-soil-ph-probe-soil-substrate-solution\"\u003ereplaceable Soil pH Probe\u003c\/a\u003e drives accuracy across media types, and simple 2-point calibration with a built-in 30-day reminder keeps readings dependable over time. A \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl-filled probe cap\u003c\/a\u003e keeps the probe hydrated between uses, and a 2-metre (6.6ft) cable reaches into hard-to-access containers and beds.\u003c\/p\u003e\n\u003cp\u003eA bright backlit display and compact handheld design make it easy to check root-zone pH anywhere in the grow room, and the meter's multimedia-friendly build means it moves seamlessly between different growing environments without needing a different tool for each one.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cstyle\u003e.features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}.feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\u003c\/style\u003e\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌱\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eToughened Speartip Probe\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003e\u003ca href=\"\/products\/bluelab-soil-ph-probe-soil-substrate-solution\"\u003eReplaceable probe\u003c\/a\u003e designed for direct insertion into growing media.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌍\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMultimedia-Friendly\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eTakes accurate readings across hydroponics, soil, and coco coir.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e⚙️\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eQuick 2-Point Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBuilt-in 30-day reminder keeps readings accurate over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eHydrated Probe Cap\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003e\u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl-filled cap\u003c\/a\u003e keeps the probe hydrated between uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📏\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e2m \/ 6.6ft Reach Cable\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eTake readings in hard-to-reach containers and beds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBacklit Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBright, easy-to-read screen in a compact handheld design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBluelab Multimedia pH Meter\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/bluelab-soil-ph-probe-soil-substrate-solution\"\u003eBluelab Leap pH Probe\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eDibber (Auger)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-7-buffer-neutral-point-calibration\"\u003eBluelab pH 7.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl.oz., single-use)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bluelab-ph-40-buffer-low-range-calibration\"\u003eBluelab pH 4.0 Calibration Solution\u003c\/a\u003e (18ml \/ 0.6fl.oz., single-use)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\u003cdiv class=\"styled-spec-container\"\u003e\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.0–14.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy (at 25°C \/ 77°F)\u003c\/td\u003e\n\u003ctd\u003e±0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e1°C \/ 1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \/ ±2°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eNutrient solution, 32–122°F (0–50°C) — do not use or store outside this range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e2x AAA alkaline battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Soil_pH_Meter_Manual.pdf?v=1789584449\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eSoil pH Meter Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\u003ch4\u003eWarranty\u003c\/h4\u003e\u003cp\u003eThe Bluelab Soil pH Meter is covered by a 5-year limited warranty.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat growing media can I use the Soil pH Meter in?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt's multimedia-friendly and delivers accurate readings in hydroponics, soil, and coco coir alike.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the probe replaceable?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eYes. The toughened speartip \u003ca href=\"\/products\/bluelab-soil-ph-probe-soil-substrate-solution\"\u003eLeap pH Probe\u003c\/a\u003e is replaceable, so a worn probe doesn't mean replacing the entire meter.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often do I need to calibrate this meter?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eBluelab recommends regular 2-point calibration, and the meter includes a built-in 30-day reminder so you don't miss a cycle.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I keep the probe in good condition between uses?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe probe comes with a \u003ca href=\"\/products\/bluelab-kcl-storage-solution-keep-probes-hydrated\"\u003eKCl-filled cap\u003c\/a\u003e that keeps it hydrated when not in use, helping extend its accuracy and lifespan.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow far does the cable reach?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eThe cable measures 2 metres (6.6ft), letting you test containers and beds that are hard to reach directly.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat temperature range can this meter be used in?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eIt operates and reads accurately between 32–122°F (0–50°C). Avoid using or storing it outside this range.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":52473645465816,"sku":"METMULTI","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_Soil_pH_Meter_1.png?v=1789584545"},{"product_id":"vivosun-digital-ph-meter-pen-with-atc-0-14-ph-backlit-lcd","title":"Vivosun Digital pH Tester with ATC","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eVivosun Digital pH Tester with ATC \u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eTest strips and drop kits leave you squinting at color charts and guessing whether your nutrient solution is at 5.8 or 6.4. That difference decides whether your plants can absorb what you're feeding them. The Vivosun Digital pH Tester replaces the guesswork with a clear number. It measures the full 0.00–14.00 pH range at 0.01 resolution and ±0.1 pH accuracy, and Automatic Temperature Compensation (ATC) keeps readings reliable whether your reservoir runs cool or warm.\u003c\/p\u003e\n\u003cp\u003eCalibration takes one button. Press \"CAL\" for 3 seconds in a buffer solution and the meter calibrates itself, with support for one-, two-, or three-point calibration at pH 6.86, 4.00, and 9.18. The HOLD button locks the reading so you can pull the probe out and read it comfortably. Memory retains calibration through battery changes and power interruptions. A large backlit LCD stays readable in a dim grow room, and auto-off timers (60 seconds for the backlight, 5 minutes for the meter) extend battery life.\u003c\/p\u003e\n\u003cp\u003eAt 6.23\" long and just 1.8 oz, the tester fits in a pocket for checks anywhere. Beyond hydroponic reservoirs and nutrient mixes, it's equally useful for drinking water, pools, spas, aquariums, and brewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\u003cvideo src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/8ff7083a2ca6459e96e28f2ed1dd80ba.mp4\" style=\"width: 100%; height: auto; border-radius: 8px;\" autoplay=\"autoplay\" muted=\"\" loop=\"loop\" playsinline=\"\" controls=\"controls\" loading=\"lazy\"\u003e\n\u003c\/video\u003e\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .image-gallery-container{max-width:1000px;margin:20px auto;}\n  .image-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;}\n  .gallery-item{aspect-ratio:1;overflow:hidden;border-radius:8px;}\n  .gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease;display:block;}\n  .gallery-item:hover img{transform:scale(1.05);}\n  @media (max-width:768px){\n    .image-gallery{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;gap:12px;}\n    .gallery-item{flex:0 0 85%;scroll-snap-align:start;}\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"image-gallery-container\"\u003e\n\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_Tester_5.jpg?v=1790363501\" alt=\"Vivosun digital pH tester with backlit LCD display\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_Tester_6.jpg?v=1790363501\" alt=\"Vivosun pH tester with automatic temperature compensation testing nutrient solution\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_Tester_4.jpg?v=1790363501\" alt=\"Vivosun pH tester one-touch calibration with buffer solution\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_Tester_7.jpg?v=1790363501\" alt=\"Vivosun pocket-size pH meter pen for hydroponics and water testing\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎯\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003ePrecise pH Readings\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eFull 0.00–14.00 range with 0.01 resolution and ±0.1 pH accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eAutomatic Temp Compensation\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eATC corrects for solution temperature for consistent results in any conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔘\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eOne-Touch Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003ePress CAL for 3 seconds for one-, two-, or three-point auto-calibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔒\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eHold Function\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLocks the current reading so you can remove the meter and read it easily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💡\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBacklit LCD Display\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLarge, clear screen with auto-off timers to conserve battery life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💾\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eCalibration Memory\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eRetains calibration after battery replacement or power interruptions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVivosun Digital pH Tester with Protective Cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e0.00–14.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eAutomatic (ATC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eOne-, two-, or three-point (pH 6.86, 4.00, 9.18)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto Shutdown\u003c\/td\u003e\n\u003ctd\u003e5 minutes (backlight off after 60 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e32–176°F (0.1–80°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e1 × 3V CR2032 button cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e6.23\" × 1.22\" × 0.65\" (159 × 32 × 17 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.8 oz (51 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003eRetains calibration after battery replacement or power loss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eHow to Use\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRemove the protective cap and press \"ON\/OFF\" to turn the meter on.\u003c\/li\u003e\n\u003cli\u003eImmerse the electrode in your solution without going above the immersion line, stir gently, and wait about 30 seconds for the reading to stabilize.\u003c\/li\u003e\n\u003cli\u003ePress \"HOLD\" to lock the reading; a lock icon appears on the display.\u003c\/li\u003e\n\u003cli\u003eRinse the electrode with distilled or purified water, dry it with a microfiber cloth, turn the meter off, and replace the cap.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCalibration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eDissolve a pH 6.86 buffer packet in 250 ml of distilled water.\u003c\/li\u003e\n\u003cli\u003eTurn the meter on, immerse the electrode, stir gently, and wait for the reading to stabilize.\u003c\/li\u003e\n\u003cli\u003ePress and hold \"CAL\" for about 3 seconds until CAL appears, then release. The display flashes 6.86; once it stops flashing, calibration is complete.\u003c\/li\u003e\n\u003cli\u003eFor two- or three-point calibration, repeat the process with pH 4.00 and\/or pH 9.18 buffer solutions.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_Tester_Manual.pdf?v=1790363320\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003epH Tester User Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Vivosun Digital pH Tester is covered by a 2-year manufacturer warranty from the original date of purchase.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I calibrate the pH tester?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eDissolve a pH buffer packet in 250 ml of distilled water, immerse the electrode, and wait for the reading to stabilize. Press and hold \"CAL\" for about 3 seconds until the display flashes the buffer value; when it stops flashing, the meter is calibrated. Buffer powders are available in the Vivosun pH Buffer Powder Calibration Kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eShould I use one-, two-, or three-point calibration?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eOne-point calibration at pH 6.86 delivers ±0.1 pH accuracy and suits most routine testing. Adding pH 4.00 and\/or 9.18 for two- or three-point calibration improves accuracy across the wider range, which is useful if you test solutions well above or below neutral.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does ATC do?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eAutomatic Temperature Compensation adjusts readings for the solution's temperature, since pH values shift slightly as temperature changes. This keeps results accurate whether your reservoir is cool or warm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow far should I immerse the meter?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eSubmerge the electrode in the solution but never above the marked immersion line on the meter. Stir gently and wait about 30 seconds for a stable reading.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I care for the electrode?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eAfter each use, rinse the electrode with purified or distilled water, dry it with a microfiber cloth, and replace the protective cap. Regular cleaning keeps the electrode sensitive and extends its life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I reset the meter to factory settings?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eWith the meter turned off, press and hold the HOLD button, then press the power button. When the meter powers on, it's restored to factory settings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat else can I test with it?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eBeyond hydroponic reservoirs and plant nutrients, the tester works for drinking water, pools, spas, aquariums, and brewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":52552477475032,"sku":"WEB-305141-PEN","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_Tester_1.jpg?v=1790363501"},{"product_id":"vivosun-aerolab-p30-ph-meter-0-01-ph-replaceable-probe","title":"Vivosun AeroLab P30 Digital pH Meter","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eVivosun AeroLab P30 Digital pH Meter\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eMost pocket pH pens are accurate to ±0.1 pH and get thrown away once the probe wears out. In a hydroponic or DWC system where small pH swings affect nutrient uptake, that isn't good enough, and replacing the whole meter every year adds up. The Vivosun AeroLab P30 reads 0.00–14.00 pH to ±0.01 accuracy, ten times tighter than a standard pen. Automatic Temperature Compensation (ATC) and a live temperature readout keep measurements stable as reservoir temperatures shift.\u003c\/p\u003e\n\u003cp\u003eCalibration is guided. The P30 supports one-, two-, or three-point calibration with smart buffer recognition and an automatic stability check, and works with both NIST (4.01\/6.86\/9.18) and USA (4.00\/7.00\/10.01) buffer standards. Everything needed to start is in the box: four AAA batteries, two packets each of pH 4.01, 6.86, and 9.18 buffer powder, and a 50 ml measuring cup. When the probe eventually wears out (typically after about a year), unscrew it and install a replacement instead of buying a new meter.\u003c\/p\u003e\n\u003cp\u003eAn IP67-rated PC housing resists water and dust, and a sealed cap with a moist sponge keeps the electrode hydrated between uses. A backlit LCD shows pH and temperature together. Auto and manual HOLD lock readings so the meter doesn't have to stay in solution, and an adjustable auto shut-off (5–20 minutes) extends battery life. It's built for hydroponics, DWC, drip irrigation, aquariums, and lab use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\u003cvideo src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/9f5496b3efe94041abe5b4ef68f491f0.mp4\" style=\"width: 100%; height: auto; border-radius: 8px;\" autoplay=\"autoplay\" muted=\"\" loop=\"loop\" playsinline=\"\" controls=\"controls\" loading=\"lazy\"\u003e\n\u003c\/video\u003e\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .image-gallery-container{max-width:1000px;margin:20px auto;}\n  .image-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;}\n  .gallery-item{aspect-ratio:1;overflow:hidden;border-radius:8px;}\n  .gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease;display:block;}\n  .gallery-item:hover img{transform:scale(1.05);}\n  @media (max-width:768px){\n    .image-gallery{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;gap:12px;}\n    .gallery-item{flex:0 0 85%;scroll-snap-align:start;}\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"image-gallery-container\"\u003e\n\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_P30_4.jpg?v=1790612960\" alt=\"Vivosun AeroLab P30 digital pH meter with automatic temperature compensation\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_P30_3.jpg?v=1790612960\" alt=\"Vivosun AeroLab P30 one-touch auto calibration with buffer solutions\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_P30_5.jpg?v=1790612960\" alt=\"Vivosun AeroLab P30 backlit LCD, IP67 housing, replaceable electrode, and auto power-off\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_P30_2.jpg?v=1790612960\" alt=\"Vivosun AeroLab P30 measuring pH with ±0.01 accuracy across the full 0-14 range\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎯\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e±0.01 pH Accuracy\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLab-grade precision across the full 0.00–14.00 range for tight nutrient control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌡️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eATC \u0026amp; Temperature Readout\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eCompensates for temperature automatically and displays it alongside pH.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔘\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eSmart Auto Calibration\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003e1-, 2-, or 3-point calibration with buffer recognition for NIST and USA standards.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔄\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eReplaceable Probe\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSwap in a new electrode when it wears out instead of replacing the whole meter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eIP67 Durable Housing\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eWater- and dust-resistant PC body with a sealed, sponge-lined probe cap.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔒\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eAuto \u0026amp; Manual HOLD\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLock readings instantly on a backlit LCD, with adjustable auto shut-off.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x AeroLab P30 Digital pH Meter\u003c\/li\u003e\n\u003cli\u003e4x AAA Batteries\u003c\/li\u003e\n\u003cli\u003e2x pH 4.01 Buffer Powder Packets\u003c\/li\u003e\n\u003cli\u003e2x pH 6.86 Buffer Powder Packets\u003c\/li\u003e\n\u003cli\u003e2x pH 9.18 Buffer Powder Packets\u003c\/li\u003e\n\u003cli\u003e1x 50 ml Measuring Cup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e0.00–14.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e32–122°F (0–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1°F (0.1°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eAutomatic (ATC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003e1-, 2-, or 3-point with auto buffer recognition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffer Standards\u003c\/td\u003e\n\u003ctd\u003eNIST (4.01\/6.86\/9.18) or USA (4.00\/7.00\/10.01)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe\u003c\/td\u003e\n\u003ctd\u003eReplaceable pH electrode (typical lifespan ~1 year)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003ePC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eBacklit LCD (pH + temperature)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto Power Off\u003c\/td\u003e\n\u003ctd\u003eAdjustable, 5–20 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto HOLD\u003c\/td\u003e\n\u003ctd\u003eOff or adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e4 × AAA batteries (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1.65\" × 1.65\" × 7.52\" (42 × 42 × 191 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.23 oz (120 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eHow to Use\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eMeasuring:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRemove the top cover, insert the 4 AAA batteries into the battery compartment, and replace the cover.\u003c\/li\u003e\n\u003cli\u003eShort press the power button to turn the meter on, rinse the probe with distilled water, and shake off excess water.\u003c\/li\u003e\n\u003cli\u003ePlace the probe at least 1\" into your solution, stir gently, and let it sit. When the stability icon stops flashing, the reading is complete.\u003c\/li\u003e\n\u003cli\u003ePress CAL to manually lock the reading, or enable Auto HOLD in the settings menu.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCalibrating (NIST standard):\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eDissolve a pH 6.86 buffer packet in 250 ml of distilled water (five fills of the included 50 ml cup).\u003c\/li\u003e\n\u003cli\u003eTurn the meter on and long press CAL to enter calibration mode.\u003c\/li\u003e\n\u003cli\u003eRinse the probe, place it in the pH 6.86 solution, stir gently, and let it sit. When the reading stabilizes, press CAL to confirm.\u003c\/li\u003e\n\u003cli\u003eRepeat with pH 4.01 and then pH 9.18 solutions for two- or three-point calibration. Don't power off between points.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCare tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRinse the probe with distilled or deionized water before and after every use.\u003c\/li\u003e\n\u003cli\u003eStore with the protective cap on, and periodically add 3–5 drops of potassium chloride (KCl) solution to the sponge inside the cap.\u003c\/li\u003e\n\u003cli\u003eNever store the probe in pure water, and don't fully submerge the meter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_P30_Manual.pdf?v=1790612809\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eAeroLab P30 User Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Vivosun AeroLab P30 Digital pH Meter is covered by a 2-year limited manufacturer warranty from the original date of purchase.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow accurate is the AeroLab P30 compared to a standard pH pen?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe AeroLab P30 is accurate to ±0.01 pH, while most standard pocket pH pens are rated at ±0.1 pH. That tighter precision matters in hydroponic and DWC systems, where small pH swings affect nutrient availability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eShould I use NIST or USA calibration buffers?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eEither works. The meter ships set to NIST and includes NIST buffers (4.01, 6.86, 9.18). If you prefer USA-standard buffers (4.00, 7.00, 10.01), switch the buffer type in the settings menu (P02) before calibrating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhy does it take longer to read pure or RO water?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eLow-mineral water like RO, distilled, or drinking water can take 1–5 minutes to stabilize. To speed it up without affecting accuracy, add 3M potassium chloride (KCl) solution at a 1:1000 ratio (1 ml per 1,000 ml of water).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I store the probe between uses?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eTurn the meter off and attach the protective cap securely to keep the probe moist. Periodically add 3–5 drops of KCl solution to the sponge inside the cap. Never store the probe in pure water. If it has dried out, soak it in KCl solution for at least 24 hours before recalibrating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhen and how do I replace the probe?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe probe typically lasts about a year depending on use and care. Replace it if readings become slow, unstable, or won't calibrate. Remove the cap, unscrew the nut, pull out the old probe, insert the new one aligned with the pins, and screw it in tightly. Soak it in KCl solution for at least 5 minutes, then calibrate. Use only Vivosun-designated replacement probes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs the meter waterproof?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe AeroLab P30 is IP67-rated to resist water and dust, protecting it from splashes and accidental drops. It's still designed for measuring liquids with the probe only, so don't fully submerge the meter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":52574294114520,"sku":"WEB-VSE-ALP30","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_AeroLab_P30_1.jpg?v=1790612959"},{"product_id":"vivosun-ph-tds-meter-3-in-1-soil-tester-kit","title":"Vivosun 3-in-1 Water \u0026 Soil Testing Combo","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eVivosun 3-in-1 Water \u0026amp; Soil Testing Combo\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eNutrient lockout, pH drift, and over-watering are hard to catch by eye. By the time leaves yellow or curl, the problem has usually been building for days. The Vivosun Water \u0026amp; Soil Testing Combo gives you three dedicated meters in one kit so you can check both your water and your root zone before symptoms appear. The kit includes a digital pH meter with ±0.1 accuracy, a 4-mode TDS\/EC\/temperature tester, and a battery-free analog soil tester.\u003c\/p\u003e\n\u003cp\u003eThe Vivosun pH tester reads 0.00–14.00 pH and calibrates with one touch using the included buffer powder packs. The 3-in-1 TDS tester measures total dissolved solids (0–9999 ppm) and electrical conductivity (0–9999 µS\/cm) with ±5% accuracy. It shows water temperature on the same screen, and you can cycle through four display modes to read ppm or µS\/cm alongside °C or °F. Both digital testers use large backlit LCD screens that stay readable in dim grow rooms. The TDS tester's HOLD button locks a reading on screen so you can record it.\u003c\/p\u003e\n\u003cp\u003eFor soil growers, the 3-in-1 soil tester slides between moisture, pH, and light modes. Its color-coded dial shows at a glance whether your medium is dry, moist, or wet, and whether it's acidic or alkaline. The dual 7.8″ probes reach into the root zone, and the tester needs no battery. The Vivosun combo covers hydroponic reservoirs, soil beds, RO systems, aquariums, pools, spas, and household water checks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\u003cvideo src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/f0a586d5b67b4b5b84b6badf89ad52d2.mp4\" style=\"width: 100%; height: auto; border-radius: 8px;\" autoplay=\"autoplay\" muted=\"\" loop=\"loop\" playsinline=\"\" controls=\"controls\" loading=\"lazy\"\u003e\n\u003c\/video\u003e\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .image-gallery-container{max-width:1240px;margin:20px auto;}\n  .image-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;}\n  .gallery-item{aspect-ratio:1;overflow:hidden;border-radius:8px;}\n  .gallery-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 0.3s ease;}\n  .gallery-item:hover img{transform:scale(1.05);}\n  @media (max-width:768px){\n    .image-gallery{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;gap:0.75rem;}\n    .gallery-item{flex:0 0 85%;scroll-snap-align:center;}\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"image-gallery-container\"\u003e\n\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_TDS_Soil_Tester_5.jpg?v=1790617918\" alt=\"Vivosun water and soil testing combo with pH meter, TDS\/EC tester, and soil tester\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_TDS_Soil_Tester_2.jpg?v=1790617917\" alt=\"Vivosun digital pH tester for hydroponic and drinking water testing\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_TDS_Soil_Tester_4.jpg?v=1790617917\" alt=\"Vivosun 3-in-1 soil tester measuring moisture, pH, and light in garden soil\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_TDS_Soil_Tester_3.jpg?v=1790617917\" alt=\"Vivosun 3-in-1 TDS and EC meter showing four display modes and measuring specifications\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎯\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e±0.1 pH Accuracy\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eReads the full 0.00–14.00 pH range with one-touch automatic calibration using included buffer packs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💧\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e4-Mode TDS\/EC Tester\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eMeasures TDS and EC to 9999 at ±5% accuracy, paired with °C or °F readings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🌱\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBattery-Free Soil Tester\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eSlide between moisture, pH, and light modes; color-coded dial and 7.8″ probes need no batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔆\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eBacklit LCD Screens\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLarge backlit displays on the digital pH and TDS testers stay readable in dim grow rooms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📌\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eHold \u0026amp; Memory Functions\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eLock readings for easy logging, and keep settings after unexpected power interruptions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔄\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMulti-Use Applications\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eTest hydroponic reservoirs, soil, RO systems, aquariums, pools, spas, and household water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Tester – Measuring Range\u003c\/td\u003e\n\u003ctd\u003e0.00–14.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Tester – Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Tester – Calibration\u003c\/td\u003e\n\u003ctd\u003eOne-touch automatic (buffer powder packs included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Tester – Display\u003c\/td\u003e\n\u003ctd\u003eBacklit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Tester – TDS Range\u003c\/td\u003e\n\u003ctd\u003e0–9999 ppm (1 ppm resolution, ±5% accuracy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Tester – EC Range\u003c\/td\u003e\n\u003ctd\u003e0–9999 µS\/cm (1 µS\/cm resolution, ±5% accuracy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Tester – Temperature Range\u003c\/td\u003e\n\u003ctd\u003e0.1–80°C \/ 32–176°F (0.1 resolution, ±1 accuracy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Tester – Display Modes\u003c\/td\u003e\n\u003ctd\u003eppm \u0026amp; °C, ppm \u0026amp; °F, µS\/cm \u0026amp; °C, µS\/cm \u0026amp; °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Tester – Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e0.1–80°C \/ 32–176°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Tester – Controls\u003c\/td\u003e\n\u003ctd\u003eON\/OFF, MODE, HOLD\/CAL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Tester – Display\u003c\/td\u003e\n\u003ctd\u003eBacklit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDS Tester – Power Supply\u003c\/td\u003e\n\u003ctd\u003e1× 3V CR2032 button cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoil Tester – Modes\u003c\/td\u003e\n\u003ctd\u003eMoisture, pH, Light (3-position slide switch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoil Tester – Moisture Scale\u003c\/td\u003e\n\u003ctd\u003e1–10 relative (1–3 Dry, 4–7 Moist, 8–10 Wet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoil Tester – pH Scale\u003c\/td\u003e\n\u003ctd\u003e3.5–8 pH (3.5–7 Acidic, 7–8 Alkaline)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoil Tester – Light Scale\u003c\/td\u003e\n\u003ctd\u003e0–2000 lux (relative intensity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoil Tester – Display\u003c\/td\u003e\n\u003ctd\u003eAnalog dial, color-coded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoil Tester – Power\u003c\/td\u003e\n\u003ctd\u003eNo battery required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoil Tester – Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.8″ × 1.8″ (7.8″ probe length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eVivosun backs the Water \u0026amp; Soil Testing Combo with 2 years of after-sale service.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat does the Vivosun Water \u0026amp; Soil Testing Combo include?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe combo includes three testers: a digital pH meter, a 3-in-1 TDS\/EC\/temperature tester, and an analog 3-in-1 soil tester for moisture, pH, and light. Buffer powder packs are also included for calibrating the pH meter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I calibrate the Vivosun pH tester?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eMix the included buffer powder packs into solution, then use the one-touch automatic calibration function. The meter calibrates itself to the buffer, so no manual adjustment is needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's the difference between TDS and EC readings?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eEC (electrical conductivity) measures how well your solution conducts electricity, reported in µS\/cm. TDS (total dissolved solids) converts that value to an estimated concentration in ppm. Press MODE on the Vivosun TDS tester to switch between ppm and µS\/cm, with temperature shown in °C or °F.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eDoes the soil tester need batteries?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eNo. The 3-in-1 soil tester is an analog meter that needs no battery. Push the probes into the soil, set the slide switch to moisture, pH, or light, and read the color-coded dial.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I read the soil tester's moisture and pH scales?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eIn moisture mode, 1–3 (red) means dry, 4–7 (green) means moist, and 8–10 (blue) means wet, so you know when it's time to water. In pH mode, the dial reads 3.5–7 as acidic and 7–8 as alkaline.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat battery does the TDS tester use?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe Vivosun 3-in-1 TDS tester runs on a single 3V CR2032 button cell. These are widely available and easy to replace.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I use this kit for hydroponics?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. The pH meter and TDS\/EC tester are well suited to monitoring hydroponic reservoirs, with ranges up to 14.00 pH and 9999 ppm TDS. Regular checks help you catch pH drift and nutrient imbalances early.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat else can I test besides grow water and soil?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe water testers work for drinking water, RO systems, aquariums, swimming pools, and spas. They measure pH, TDS, EC, and temperature, giving you a quick read on water quality wherever you use them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":52574570873048,"sku":"WEB-COMBO-PH","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_pH_TDS_Soil_Tester_1.jpg?v=1790617917"}],"url":"https:\/\/trimleaf.com\/collections\/digital-meters.oembed?page=2","provider":"Trimleaf","version":"1.0","type":"link"}