Oxygen Reduction Potential (ORP) Sensor

ORP Sensor Water Quality Hydrolab

Hydrolab’s ORP sensor uses a platinum band that donates or accepts electrons to monitor chemical reactions, quantify ion activity, or determine the oxidizing or reducing properties of a solution.


  • The state of the reaction is measured by the potential developed between and inert noble metal electrode (platinum) and a reference electrode (same reference for pH)
  • Compliant with SM2580 B


Video – ORP Sensor Calibration – EN

Technical Data

ORP Sensor
Range -999 … 999 mV
Accuracy ± 20 mV
Resolution 1 mV

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