HM Digital HM-100 Monitor The HM-100 is a pH/EC/TDS/Temp monitor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. The HM Digital HydroMaster HM100 conveys 3 critical parameters for successful gardening. The HM100 is a versatile continuous monitor that displays pH, EC (µS/mS), TDS (.5 (NaCl) / .7 (442)) & Temperature (°F / °C) providing accurate, reliable readings the user can rely on year after year. The HM100 can be wall mounted for 24/7 monitoring. Features Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature Four scales: pH, mS, ppm 0.5 (NaCl) Scale & 0.7 (442™) Scale Automatic Temperature Compensation (ATC) using three temperature coefficients Digital Calibration (push button) to any point within the meter’s range Data-hold function (Max. 6 data values) Large and easy-to-read LCD Screen Displays 3 parameters (pH/EC or TDS/Temp) simultaneously. Replaceable Sensors (model SP-C2 for Conductivity, SP-P5 for pH) Factory Calibrated (pH/EC/TDS) Includes power cable, pH 4 & 7 calibration solutions, pH storage solution Specifications Measurement Scales pH: pH Temp: °C, °F TDS: ppm (0.5 / ppm (0.7) EC: mS Range: pH: 0.1 – 14.0 pH Temperature: 0.0 – 60.0 °C / 32.0 – 122.0 °F TDS: 0 – 9990 ppm EC: 0 – 10.00 mS Resolution: pH: 0.1 pH Temp: 0.1°C / 0.1 °F TDS: ppm: 1 ppm (0-999ppm) / 10ppm (1000-9990 ppm) EC: mS: 0.01 mS (0.01 – 20.00 mS) Accuracy: pH: ± 0.1 pH Temp: ± 1 °C / ˚F TDS: ± 2 % EC: ± 2 % ATC: Yes Power Source: 5V/1A Function Environment: 0 – 50°C (0-122°C) / RH 80 % (EC Probe: 0 – 80°C) Sensor Cable: 24-inch shielded Coaxial Cable Dimensions: About 4.3 x 7.9 x 1.3 inches Weight: 10 ounces for body / 5 ounces for two probes (without case)
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