{"product_id":"bluelab-2-77-ec-standard-solution-box-of-6","title":"Bluelab 2.77 EC Standard Solution Box of 6 – EC Calibration","description":"\u003ch2\u003eA known reference that keeps your EC readings honest\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eBluelab 2.77 EC Conductivity Standard Solution\u003c\/strong\u003e is a laboratory-referenced test liquid made to \u003cstrong\u003e2.77 EC (27.7 CF)\u003c\/strong\u003e at 25 °C – \u003cstrong\u003e1385 ppm\u003c\/strong\u003e on the 500 scale and \u003cstrong\u003e1940 ppm\u003c\/strong\u003e on the 700 scale. Bluelab's conductivity pens and meters are \u003cstrong\u003efactory calibrated\u003c\/strong\u003e, and this is the solution Bluelab specify to \u003cstrong\u003echeck a meter's accuracy\u003c\/strong\u003e after cleaning the probe. Meters from other makers that calibrate at 2.77 EC can be calibrated with it too.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnown value\u003c\/strong\u003e – 2.77 EC \/ 27.7 CF \/ 1385 ppm (500) \/ 1940 ppm (700) at 25 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade for Bluelab\u003c\/strong\u003e – the check solution for the Truncheon, Conductivity Pen, Combo Meter, OnePen and Guardian Monitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatches probe drift early\u003c\/strong\u003e – a one-minute test shows whether the probe needs another clean before you mix a feed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTests where it matters\u003c\/strong\u003e – 2.77 EC sits near the strength most nutrient solutions run at.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIs your EC meter telling the truth?\u003c\/h3\u003e\u003cp\u003eConductivity probes pick up nutrient residue and drift with age. A meter a few tenths out can have you under- or over-feeding without knowing – slow growth, tip burn and poor nutrient uptake that look like a feeding problem but are really a measuring one. Bluelab recommend cleaning and testing every 30 days.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the probe\u003c\/strong\u003e as your meter's instructions describe, then rinse in fresh water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePour a small sample\u003c\/strong\u003e into a clean container – never put the probe into the original container.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmerse the probe\u003c\/strong\u003e, let the reading settle and compare it with 2.77 EC, or run your meter's calibration routine if it has one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiscard the sample\u003c\/strong\u003e after use and store the rest sealed, cool and out of direct sunlight.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003eBrand: Bluelab\u003c\/li\u003e\n\u003cli\u003eConductivity: 2.77 EC \/ 27.7 CF at 25 °C\u003c\/li\u003e\n\u003cli\u003eppm equivalents: 1385 ppm (500 scale) \/ 1940 ppm (700 scale)\u003c\/li\u003e\n\u003cli\u003eUse: accuracy checks and calibration of EC, CF and ppm meters\u003c\/li\u003e\n\u003cli\u003eFor: Bluelab Truncheon, Conductivity Pen, Combo Meter, OnePen, Guardian Monitor and other 2.77 EC meters\u003c\/li\u003e\n\u003cli\u003eRecommended test interval: every 30 days, after probe cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Bluelab","offers":[{"title":"250ml x 6","offer_id":53803794006282,"sku":"NUT-BLUE-008-01","price":51.95,"currency_code":"GBP","in_stock":true},{"title":"500ml x 6","offer_id":53803794039050,"sku":"NUT-BLUE-008-02","price":63.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/bluelab-2-77-ec-standard-solution-box-of-6-250ml-x-6-1.jpg?v=1790229354","url":"https:\/\/hydrocropshop.co.uk\/products\/bluelab-2-77-ec-standard-solution-box-of-6","provider":"Hydro Crop Shop","version":"1.0","type":"link"}