{"product_id":"milwaukee-c66-conductivity-pen","title":"Milwaukee C66 Conductivity Pen – EC Tester for Hydroponics","description":"\u003ch2\u003eA Pocket EC Pen You Can Recalibrate and Repair\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eMilwaukee C66 Conductivity Pen\u003c\/strong\u003e is a waterproof, high-range \u003cstrong\u003eEC tester\u003c\/strong\u003e for checking nutrient solutions in hydroponics, coco and soil feeding. It reads \u003cstrong\u003e0.00 to 10.00 mS\/cm\u003c\/strong\u003e to a \u003cstrong\u003e0.01 mS\/cm\u003c\/strong\u003e resolution on a digital display, corrects for water temperature automatically, and uses a \u003cstrong\u003ereplaceable electrode\u003c\/strong\u003e, so a worn probe means a new tip rather than a new meter.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh range\u003c\/strong\u003e - \u003cstrong\u003e0.00-10.00 mS\/cm\u003c\/strong\u003e covers seedlings, heavy feeds and run-off checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate to ±2% full scale\u003c\/strong\u003e, reading in mS\/cm that converts easily to ppm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic temperature compensation\u003c\/strong\u003e from \u003cstrong\u003e5-50 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecalibrate when you need to\u003c\/strong\u003e - factory calibrated, with one-point manual calibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable electrode\u003c\/strong\u003e (MA73076) extends the life of the pen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP65 waterproof\u003c\/strong\u003e - shrugs off splashes at the reservoir.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Measure EC?\u003c\/h3\u003e\u003cp\u003eEC tells you how much fertiliser is really dissolved in the tank. Without it, a feed that has crept too strong can scorch roots and lock out nutrients, and one that has weakened as plants drink leaves them hungry, with slow growth and pale foliage. A quick EC check each time you mix, top up or test run-off keeps nutrient uptake steady.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasure:\u003c\/strong\u003e remove the cap, switch on and dip the electrode into the solution; stir gently and read once the display settles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvert:\u003c\/strong\u003e multiply mS\/cm by 500 or 700 for ppm, depending on the scale your feed chart uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrate:\u003c\/strong\u003e check against 1413 µS\/cm solution and adjust the trimmer if the reading has drifted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare:\u003c\/strong\u003e rinse the electrode in fresh tap water after every use to prevent nutrient build-up.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Milwaukee C66 Waterproof High Range Conductivity Pen\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e 0.00 to 10.00 mS\/cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 0.01 mS\/cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±2% full scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature compensation:\u003c\/strong\u003e automatic, 5 to 50 °C (β = 2%\/°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration:\u003c\/strong\u003e manual, one point via trimmer (1413 µS\/cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrode:\u003c\/strong\u003e MA73076, replaceable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e IP65 waterproof\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 3 x 1.5V LR44 batteries (included), approx. 250 hours continuous use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e approx. 165 x 30 x 30mm; approx. 100g\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":53803834540298,"sku":"TLS-MILW-004-01","price":34.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/milwaukee-c66-conductivity-pen-1.jpg?v=1790229764","url":"https:\/\/hydrocropshop.co.uk\/products\/milwaukee-c66-conductivity-pen","provider":"Hydro Crop Shop","version":"1.0","type":"link"}