Oxidation-reduction potential or commonly known as ORP is a measure of the tendency, of a liquid substance to obtain or reduce electrons when introduced to another liquid substance. A reference electrode produces a constant and stable voltage to reference against a voltage generated by the measuring electrode.

ORP meters measure in volts and use electrode sensors to determine the voltage difference between the two liquid substances. The voltages give a reading to indicate the ability of the oxidizers in a liquid substance to keep it free of contaminants.

ORP meters are commonly used to measure sanitizer effectiveness and to control chlorine generators and ionizers in the water of swimming pools and spas. They are also used for drinking water, fruit, and vegetable disinfection.

If you need assistance selecting or configuring an ORP Meter for your measuring application please contact us at toll free 1.866.363.6634 or email us at [email protected].