OAKTONŽ Waterproof ORPTestrŽ 10

Replaceable electrode is idea for dirty water, heavy metals and organics.

Dual display with indicators for battery power, over/under range for ORP values and ORP calibration error.

Large platinum band on the sensor minimizes contamination as well as giving quick, stable, repeatable response and results. Calibration is a two-button process. You can adjust readings ą150 mV to match known solutions. Calibration data is safe when you power off or change batteries. Auto shut-off and hold functions. User-replaceable double-junction sensor. No tools required. Made of engineering plastic.