HM Digital Hydromaster 100 - Continuous pH/TDS/EC/Temp Meter

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.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) ATC: Yes Accuracy: pH: ± 0.1 pH Temp: ± 1 °C / °F TDS: ± 2 % EC: ± 2 % 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)