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HM Digital Hydroponic Test Meters

> Meters & Pens > HM Digital

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HM Digital COM-80 EC/TDS Hydrotester

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

HM Digital PH-80 Water Resistant pH Meter

The HM Digital PH-80 pH Meter is an economically priced, reliable pH meter that is ideal for testing in hydroponic and aquaculture applications

HM Digital TDS-4TM Pocket TDS Temp Meter

The HM Digital TDS-4TM Pocket Size TDS & Temp Meter is ideal for fresh water aquariums, swimming pools, spas, and hydroponics.

HM Digital TDS-EZ Consumer TDS Meter

The HM Digital TDS-EZ Consumer TDS Meter is Ideal for all basic water testing applications. The best value meter in the world!