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Quick view HM Digital Com-80S TDS/PPM Pen HM DIGITAL COM-80S HYDROTESTER TDS / EC / TEMP METER Main Features: Four scales: EC (µS, mS) & TDS (ppm, ppt). Automatic Temperature Compensation (ATC). Water resistant. Measurement Range:... MSRP: Now: $49.95 Add to Cart Compare Quick view HM Digital HM PH 7 Buffer Solution 20 mL HM Digital pH 7.0 buffer solution - 1 packet of 20 mL 7.0 pH buffer solution to calibrate pH pens MSRP: Now: $1.99 Add to Cart Compare Quick view HM Digital HM TDS 1000 PPM 20ML HM Digital TDS 1000 ppm calibration solution - 1 packet of 20 mL 1000 ppm NaCl calibration solution MSRP: Now: $0.99 Add to Cart Compare Quick view HM Digital HM TDS Calibration Solution HM Digital 1000 PPM Calibration Solution For optimal performance, re-calibrate your meters periodicall MSRP: Now: $8.95 Add to Cart Compare Quick view HM Digital PH Pen ph80s Digital pH PenMeasures pH and TemperatureOne-touch automatic digital calibrationWater resistant MSRP: Now: $68.95 Add to Cart Compare Quick view HM Digital PH-200 HM Digital Pen Digital pH-200 Pen pH (potential of hydrogen) is an indication of a substance's acid or alkaline properties. The higher the pH, the more base it is, and the lower the pH, the more acidic it is. A... MSRP: Now: $129.95 Add to Cart Compare Compare Selected × OK
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