![Redox (ORP) Sensors](https://d27wgn5g4t3wja.cloudfront.net/img/b68b57f1-f9e5-4833-8e17-5bf812d2e58f/258542.png)
Redox (ORP) Sensors
ORP sensors measure the oxidation-reduction potential—the tendency to gain or lose electrons when a solution comes in contact with a chemical substance. ORP measurements are used to ensure that a solution has been completely reduced or oxidized. ORP sensors are often used in tandem with pH sensors, which measure the hydrogen ion activity in a solution.