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)