Compact Water Quality Meters

PH20 Value Pocket pH Tester Kit Easy auto. calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122˚F) Backed by Apera quality pH sensor with low impedance, ensuring high response rate Comes...

The Apera Instruments EC20 tester is simply the most reliable conductivity (EC) tester with the best value for all kinds of regular EC testing, such as hydroponics, education, tap/drinking water, swimming pool, water treatment, etc. Up to 2 points of...