Apera Orp60 Premium Orp Pocket Tester Kit

The Apera Instruments ORP60 tester is designed for reliable ORP (redox) monitoring in regular water solutions e,g, pools, and water treatment. The platinum ORP probe is replaceable and easy to install, so you don't have to buy a whole new meter once the probe is aged.Manual Calibration with 222mV standard in the kit. 1mV/