Extech Waterproof Meters

Effectively measure pH or ORP levels.

These portable, waterproof measuring devices feature a large display with bar graph, 15-reading memory with recall and easily replaceable electrode modules. Rubberized, no-slip grip housing floats in water.
Meters come complete with electrode, protective sensor cap, sample cup, four LR44 button batteries and neck strap. ExStik pH Meter operates in temperatures from 23° - 194°F. The analog bar graph starts at pH 7.00 and fluctuates from left to right based on the pH level. Automatic temperature compensation. ExStik ORP Meter has an automatic electronic self-calibration and a simulated analog bar graph displaying any change in the ORP reading. Weighted Base holds a plastic cup and meter.