COM-100 HM Digital Waterproof EC/TDS/TEMP Meter

Description

Product Documentation

The HM Digital COM-100 meter is supported by official documentation to ensure proper operation, calibration, and reliable performance in water quality testing applications.

• HM Digital COM-100 User Instruction Manual
• HM Digital TDS Meter General Usage and Calibration Instructions

Features

The COM-100 is designed for professional and commercial use, offering advanced measurement capabilities, durability, and ease of operation.

• Measures electrical conductivity (EC), total dissolved solids (TDS), salinity, and temperature.
• Upgraded four-scale display: µS, mS, ppm, and ppt.
• Three selectable non-linear EC-to-TDS conversion factors: KCl, 442™, and NaCl.
• Automatic Temperature Compensation (ATC) using three temperature coefficients.
• Waterproof IP-67 rated housing that is submersible and floats.
• Measurement ranges up to 9990 µS, 8560 ppm, 9.99 mS, and 8.56 ppt.
• Digital push-button calibration to any point within the meter’s range.
• Auto-off function, data-hold function, and low-battery indicator.
• Large, easy-to-read LCD with simultaneous temperature display.
• Replaceable sensor (model SP-C1).
• Factory calibrated using a 1413 µS solution with user-friendly digital recalibration.
• Includes a 1-year warranty.

Specification

Technical specifications outlining measurement ranges, accuracy, calibration methods, and physical characteristics of the COM-100 meter.

• EC Range: 0–9990 µS; 0–9.99 mS
• TDS Range: 0–8560 ppm (mg/L); 0–8.56 ppt
• Temperature Range: 0–80°C; 32–176°F
• Resolution: 0–99: 0.1 µS/ppm/mS/ppt; 100–999: 1 µS/ppm; 1000–9990: 10 µS/ppm; temperature resolution 0.1°C/°F
• Accuracy: ±2%
• EC to TDS Conversion: Non-linear conversion for KCl, 442™, or NaCl solutions (user selectable)
• Calibration: Digital calibration via push button
• Probe: Detachable platinum electrodes
• Housing: IP-67 waterproof, submersible, and floating
• Power Source: Three 1.5V button cell batteries (LR44 or equivalent, included)
• Dimensions: 18.5 × 3.4 × 3.4 cm (7.3 × 1.3 × 1.3 inches)
• Weight: 90.7 g (3.2 oz)