ORP is an abbreviation for “Oxidation Reduction Potential”. The ORP meter consists of an electrode that is used as a probe or sensor to measure the redox potential of water. The ORP meters are used when the water quality in terms of sanitization or contamination is to be measured. It is greatly used in general application, industrial water, environmental sewage, river and lake water quality. Pokcenser provides industrial orp sensor with display and orp sensor with modbus protocol.