HM Digital

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HM Digital 1000 PPM Calibration Solution

For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity lev..

$6.69 $6.02

HM Digital Aquapro TDS Water Tester

Measures total dissolved solids (TDS) and temperature. Automatic Temperature Compensation (ATC). Wat..

$42.95 $38.66

HM Digital Handheld TDS-3 Tester

Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due..

$36.95 $33.26

HM Digital HydroMaster HM-500

HydroMaster Digital tester makes monitoring water easier than ever by reading the levels that matter..

$359.00 $323.10

HM Digital In-Line Dual TDS Monitor

Displays TDS levels of the feed water and product water with in and out electrode probes. Highly eff..

$41.95 $37.76

HM Digital pH 80 Meter

Resolution: pH 0.1 pH, 0.00 - 14.0 pH. Accurate to ..

$62.95 $56.66

HM Digital pH Electrode Storage Solution - 60 cc / 2 oz

For use with HM Digital's PH-200 and PH-80 (as well as other brands of pH meters). Always make sure ..

$7.95 $7.16

HM Digital Replacement Probe for pH

Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. pH buffe..

$45.95 $41.36

HM Digital Water Resistant Ec/TDS Meter w/ Temperature in C/F Hydrotester (Model COM-80)

The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications s..

$47.95 $43.16

HM Digital Waterproof pH Meter

Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. pH buffe..

$99.95 $89.96

HM Waterproof EC/TDS/Temp Combo Meter

Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different..

$76.95 $69.26