ORP Redox Meter Tester 1999 1999mV, 1 point Calibration, Oxidation Reduction Potential, Aquariums, Swimming Pools, Water Treatment Systems, Aquaculture, Spa

Inexpensive and practical device with 1 point calibration, easy to use and highly accurate Measurement range: -1999 ~ 1999 mV in steps of 1 mV Easily find out the kind of water you are drinking and how effectively & efficient your filter works Carry-everywhere design, Determine the water quality indicators with this ORP meter in just a few minutes. Best for household to laboratory and industrial (drinking water test, in aquariums, artificial reservoirs, wastewater), swimming pools, water treatment systems, aquaculture, spa, etc.