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)