HM Digital Meters

AquaPro TDS/Temperature Meter

AquaPro TDS/Temperature Meter

FEATURES Measures total dissolved solids (TDS) and temperature Automatic Temperature Compen..

$42.95

Continuous pH/EC/TDS/Temp portable/wallmount/bench

Continuous pH/EC/TDS/Temp portable/wallmount/bench

HydroMaster Digital testers make monitoring water easier than ever by reading the levels that matter..

$359.00

EC/TDS/Temp Waterproof Hydro Tester

EC/TDS/Temp Waterproof Hydro Tester

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

$42.95

PH/ORP Storage Solution

PH/ORP Storage Solution

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

$6.95

PH/Temperature Meter

PH/Temperature Meter

The PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such a..

$46.50

Replacement pH Sensor HM-500

Replacement pH Sensor HM-500

HM-500 Replacement pH probe2 Meter / 80 inch cable lengthIncludes pH storage solution, 6-month warra..

$59.99

Replacement pH Sensor PH-200

Replacement pH Sensor PH-200

This spare pH sensor is for HM Digital Waterproof pH Meter model P-200. Features glass pH sensor and..

$49.95

Replacement Platinum Sensor COM-100

Replacement Platinum Sensor COM-100

This spare sensor is for HM Digital EC/TDS/Temp Combo Meter model COM-100. Features platinum TDS/EC ..

$36.95

Replacement TDS Sensor HM-500

Replacement TDS Sensor HM-500

The HM Digital Hydromaster EC/TDS Probe is a replacement part for the HydroMaster HM-500...

$49.99

TDS-3 Handheld TDS meter

TDS-3 Handheld TDS meter

Ideal for commercial use, the TDS-3 includes a carrying case with belt clip. It is highly efficent a..

$37.00

Waterproof EC/TDS/Temp Combo Meter

Waterproof EC/TDS/Temp Combo Meter

Ideal for all water quality testing, water purification applications, wastewater regulation, aquacul..

$76.95

Waterproof pH/Temperature Meter

Waterproof pH/Temperature Meter

FEATURES Measures pH and temperature Auto-ranging three point calibration with digital fine tuni..

$99.95

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