Description

The HM Digital HM-100 is a continuous pH/EC/TDS/temperature monitor for water-quality testing, hydroponics, water purification, wastewater regulation, aquaculture, colloidal silver, laboratory and scientific testing, pools and spas, ecology testing, boilers, cooling towers, and water treatment.

Features

• Measures pH, EC, TDS, salinity, and temperature.
• Four scales: pH, mS, ppm 0.5 (NaCl), and ppm 0.7 (442).
• Automatic Temperature Compensation (ATC) using three temperature coefficients.
• Digital push-button calibration to any point within the meter’s range.
• Data hold for up to six values.
• Large, easy-to-read LCD.
• Displays pH, EC or TDS, and temperature simultaneously.
• Replaceable sensors: SP-C2 for conductivity and SP-P5 for pH.
• Factory calibrated for pH, EC, and TDS.
• Includes a power cable, pH 4 and pH 7 calibration solutions, and pH storage solution.

Measurement scales

• pH: pH.
• Temperature:°C and°F.
• TDS: ppm 0.5 and ppm 0.7.
• EC: mS.

Technical specifications

• pH range: 0–14 pH
• Temperature range: 0.0–60.0°C /32.0–140.0°F
• TDS range: 0–9990 ppm
• EC range: 0–10.00 mS
• pH resolution: 0.1 pH
• Temperature resolution: 0.1°C /0.1°F
• TDS resolution: 1 ppm (0–999 ppm); 10 ppm (1000–9990 ppm)
• EC resolution: 0.01 mS (0.01–10.00 mS)
• ATC: Yes
• pH accuracy: ±0.1 pH
• Temperature accuracy: ±1°C /±1.8°F
• TDS accuracy: ±2%
• EC accuracy: ±2%
• Power: 5 V DC /1 A
• Operating environment: 0–50°C; RH 80%
• EC probe temperature: 0–80°C
• Sensor cable: 24-inch shielded coaxial cable
• Dimensions: 20.0 × 11.0 × 3.3 cm
• Two-probe weight: 5 oz, without case