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Water Test Meters & Equipment

HM Digital COM-100 Waterproof Pro Series | TDS/EC/Temp Water Quality Test Meter (GT28-COM-100-HM)

$155.00

Wish List
Genuine HM Digital COM-100 EC, TDS & Temp Meter

Super Precise (98% Accuracy)

Pre-Calibrated & Reads Wide Sample Ranges

Upgraded Non-Linear Scales (µS, mS, ppm, ppt)

Conversions at the Click of A Button

High Quality Rivals Expensive TDS & EC Meters

Test salinity, drinking water quality, scientific testing, mixing nutrients/fertilizers, gardening, hydroponics, monitoring boilers, coolers, pools, spas, aquariums, wastewater, and more!
HM Digital COM-300 Waterproof Pro Series pH/TDS/EC/Temp Water Quality Test Meter (GT28-COM-300-HM)

$340.00

Wish List
Genuine HM Digital COM-300 pH, EC, TDS & Temp Meter

Super Precise (98% Accuracy)

Pre-Calibrated & Reads Wide Sample Ranges

Upgraded Non-Linear Scales (pH, µS, mS, ppm, ppt)

Conversions at the Click of A Button

High Quality Rivals Expensive pH, TDS & EC Meters

Test salinity, drinking water quality, scientific testing, mixing nutrients/fertilizers, gardening, hydroponics, monitoring boilers, coolers, pools, spas, aquariums, wastewater, and more!
100x Macherey-Nagel pH-Fix 0-14 pH Test Strips for Water Testing (GT28-113)

$73.00

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Peroxide Test Strips 0-100 PPM 50 Tests | HydroSil-Ultra (28-105)

$55.00

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HM Digital® pH Electrode Storage Solution 20mL Potassium Chloride (KCl) 28-89-HM

$40.00

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Storage Solution for pH Meter Electrode

High Concentration Potassium Chloride (KCl)

Convenient 20mL Sachets

Deionized water + 0.00002% Bactericide
HM Digital® pH 7.0 Buffer Calibration Solution 20mL (28-90-HM)

$40.00

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pH 7.0 Buffer Solution for pH Meter

Convenient 20mL Sachets
HM Digital™ TDS Calibration Solution 342 ppm NaCl C-342 (28-111-HM)

$32.00

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EC TDS Solution - 342ppm

Approx 700uS/cm @ 25°C

TDS Calibration Fluid