{"product_id":"hm-digital-waterproof-professional-series-ph-ec-tds-temp-meter","title":"HM Digital Waterproof Professional Series pH\/EC\/TDS\/Temp Meter","description":"\u003cp\u003e\u003cstrong\u003eCOM-300L: Waterproof Professional Series pH\/EC\/TDS\/Temp Meter\u003c\/strong\u003e\u003cbr\u003eThe COM-300L is a professional grade level pH\/EC\/TDS\/Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs \u0026amp; scientific testing, pools \u0026amp; spas, ecology testing, boilers \u0026amp; cooling towers, water treatment and more.\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003eMeasures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and TemperatureFive scales: pH, µS, mS, ppm 0.5 (NaCl) Scale \u0026amp; 0.7 (442) ScaleAutomatic Temperature Compensation (ATC) using three temperature coefficientsWaterproof housing (IP-67 rating)Digital Calibration (push button) to any point within the meter’s rangeAuto-off function, data-hold function and low-battery indicatorDisplay: large and easy-to-read LCD screen includes simultaneous temperature readingReplaceable Sensor (model SP-C3)Factory Calibrated (pH\/EC\/TDS)Includes translucent cap, 2 (AAA) alkaline batteries, pH 4 \u0026amp; 7 calibration solutions, pH storage solution and lanyard\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003epH Range: 0 – 14 pHEC Range: 0 – 9990 µS; 0 – 9.99 mSTDS Range: 0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale)Temperature Range: 0-55 °C; 32-130°FResolution: 0-99: 0.1 µS\/ppm\/ 0.01mS ; 100-999: 1 µS\/ppm; 1000-9990: 10 µS\/ppm. Temp. resolution is 0.1 °C\/FAccuracy: +\/- 2%EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user.Probe: Detachable platinum electrodes \u0026amp; pH glass sensor with reference tube electrodesHousing: IP-67 Waterproof (submersible; floats)Power source: 2 x Triple A (AAA) includedDimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)Weight: 164g (5.8 oz)\u003c\/p\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":58709032829231,"sku":"DL-HM-COM-300L","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/4875\/4479\/files\/image_1920_dae9ea19-d720-4519-864b-ad829ac7e041.jpg?v=1792870054","url":"https:\/\/mattshydroponics.com\/products\/hm-digital-waterproof-professional-series-ph-ec-tds-temp-meter","provider":"Matt’s Hydroponics","version":"1.0","type":"link"}