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pH Tester for Hydroponics

HI 99104 is an ideal pocket tester designed with a 0.01 pH resolution and two point manual calibration through easy to reach trimmers, it immediately displays pH variations to reflect the smallest change in the sample. Unlike conventional testers, HI 99104 has a long and slim stem, ideal for measurements in small samples or test tubes. HI 99104 is supplied with a rugged, plastic body electrode with a screw connector that allows for quick and easy electrode replacement. Additionally, it's low power demand allows for 1000 hours of battery life with common 1.5V batteries.

Accurate and economical measurements.
Simple calibration.
Long battery life.
Small diameter probe fits easily into a test tube.
Replaceable electrode.