{"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","url":"https:\/\/trimleaf.com\/products\/bluelab-orp-meter-track-water-disinfection-power","provider":"Trimleaf","version":"1.0","type":"link"}