{"product_id":"bluelab-277-ec-standard-solution-verify-ec-accuracy","title":"Bluelab 2.77 EC Conductivity Standard Solution","description":"\u003ch4\u003e\u003c\/h4\u003e\u003ch2\u003eBluelab 2.77 EC Conductivity Standard Solution - EC\/PPM Calibration Check Solution\u003c\/h2\u003e\u003cdiv\u003e\n\u003cp\u003eA \u003ca href=\"\/products\/bluelab-pro-controller-ec-probe-low-maintenance\"\u003econductivity probe\u003c\/a\u003e can silently drift out of accurate range without any obvious sign, throwing off EC and PPM readings across your whole nutrient program. Bluelab 2.77 EC Conductivity Standard Solution solves this by giving you a known reference point to check your probe's accuracy against, so drift gets caught before it affects your feeding schedule.\u003c\/p\u003e\n\u003cp\u003eTesting against the 2.77 EC standard regularly, especially after cleaning your probe, helps confirm readings are still on target and keeps your EC\/PPM accuracy dependable over time. It's a fundamental part of any grower's maintenance toolbox, whether you're running a single \u003ca href=\"\/products\/bluelab-conductivity-pen-ec-temp-reader-ready-to-use\"\u003ehandheld meter\u003c\/a\u003e or a full \u003ca href=\"\/products\/bluelab-guardian-monitor-wifi-alarms-edenic-app-alerts\"\u003ecommercial monitoring setup\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAvailable in 250ml (8.4fl.oz.) and 500ml (16.9fl.oz.) single bottles, as well as box-of-6 case packs of each size — choose the option that matches your usage and restocking needs from the size selector.\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 280px;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;\"\u003eVerifies EC\/PPM Accuracy\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eA known 2.77 EC reference point catches drift in tools like the \u003ca href=\"\/products\/bluelab-truncheon-meter-ec-cf-ppm-no-calibration\"\u003eBluelab Truncheon Meter\u003c\/a\u003e early.\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;\"\u003ePairs with Regular Cleaning\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003eTesting after cleaning confirms your probe is still accurate.\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;\"\u003eAvailable in Multiple Sizes\u003c\/h5\u003e\n\u003cp style=\"font-size:0.95em;line-height:1.6;color:#555;margin:0;\"\u003e250ml and 500ml bottles, plus box-of-6 case packs of each.\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;}.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\u003eOption\u003c\/th\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle Bottle\u003c\/td\u003e\n\u003ctd\u003e250ml \/ 8.4fl.oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle Bottle\u003c\/td\u003e\n\u003ctd\u003e500ml \/ 16.9fl.oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Pack\u003c\/td\u003e\n\u003ctd\u003eBox of 6 — 250ml \/ 8.4fl.oz. bottles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Pack\u003c\/td\u003e\n\u003ctd\u003eBox of 6 — 500ml \/ 16.9fl.oz. bottles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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 is the 2.77 EC Conductivity 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 a known reference solution used to check your conductivity probe's accuracy, helping you catch drift before it affects your EC\/PPM 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\u003eHow often should I test my probe against this standard?\u003c\/span\u003e\u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cdiv\u003e\u003cp\u003eTesting regularly, especially right after cleaning your probe, helps confirm your readings are still 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\u003eWhat sizes are available?\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 available in 250ml and 500ml single bottles, as well as box-of-6 case packs; for portable testing, we also offer the \u003ca href=\"\/products\/bluelab-30-sachet-box-ph-ec-storage-on-the-go\"\u003eBluelab Solution Sachet Box\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 this the same as a calibration solution?\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 verify accuracy rather than calibrate the probe directly — think of it as a check to confirm your probe is still reading correctly.\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\u003eShould I get the case pack instead of a single bottle?\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 box-of-6 case packs are a good fit if you're managing multiple probes or testing regularly, while a single bottle suits occasional use.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"250 ml - Box of 6","offer_id":52495666512088,"sku":"EC277250BL","price":89.0,"currency_code":"USD","in_stock":true},{"title":"500 ml - Box of 6","offer_id":52495666479320,"sku":"EC277500BL","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Bluelab_2.77_EC_Conductivity_Standard_Solution_250ml.webp?v=1789748425","url":"https:\/\/trimleaf.com\/products\/bluelab-277-ec-standard-solution-verify-ec-accuracy","provider":"Trimleaf","version":"1.0","type":"link"}