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5-inches Long
This avoids hard starts and power surges
phosphate and calcium
Bright White Surface
• Nutradip Calibration Solution pH 4
HM Digital Waterproof EC/TDS/Temperature Meter micro-nutrients 5-inches LongHM Digital COM100 Water Quality Testing Meter. Waterproof. Measure EC TDS. Temperature Tester. IP 67 rating. Factory Calibrated. Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. The COM 100 is a professional level EC TDS meter at an unbeatable price.
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