HM Digital COM-80 HydroTester Series EC/TDS Meter

★★★★★ 4.1 71 reviews

$22.74
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$22.74
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Product details

Management number 232587623 Release Date 2026/06/21 List Price $9.10 Model Number 232587623
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The HM Digital Waterproof EC/TDS/Temp HydroTester (COM-80) is easily the most advanced economically priced, reliable EC/TDS meter on the market. With its versatility and durability, it is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.


HM Digital Waterproof EC/TDS/Temp HydroTester Features:

  • Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for nutrient testing
  • Four scales: EC: µS, mS; TDS: ppm, 0.5 (NaCl) & 0.7 (442™)
  • Automatic Temperature Compensation (ATC)
  • Water resistant
  • Digital Calibration (push button) to any point within the meter’s range
  • Auto-off function, data-hold function and low-battery indicator
  • Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
  • Factory Calibrated: The COM-80 meter is calibrated with a 1413 µS solution.
  • Includes a protective cap and batteriesactory Calibrated with a 342 ppm NaCl solution. (Meter can be recalibrated with a mini-screwdriver).

HM Digital Waterproof EC/TDS/Temp HydroTester Applications:

  • Aquaculture
  • Aquarium
  • Drinking Water
  • Food & Beverage
  • Hydroponics
  • Industrial
  • Water Treatment
  • Window Cleaning/Carwash

HM Digital Waterproof EC/TDS/Temp HydroTester Specs:

EC Range: 0 – 9990 µS; 0 – 9.9 mS
TDS Range: 0 – 5000 ppm (0.5 Scale) ; 0-8560 ppm (0.7 Scale)
Temperature Range: 1-80 °C; 33-176 °F
Resolution: 1 µS/ppm; 0.1 mS
Temp. Resolution: 0.1 °C/F
EC-to-TDS Conversion Factor: NaCl (avg of 0.5).
Accuracy: +/- 2%
Power source: 3 x 1.5V button cell batteries (LR44 or equivalent is included)
Dimensions: 6.0 x 1.3 x 0.7 inches
Weight: 53.9g (1.9 oz)

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