Ozone Meters for Gaseous and Aqueous Applications

In operation, ozone diffuses through a membrane at the tip of the sensor and is reduced to oxygen. The reaction causes current to flow between the sensing and counter electrodes, with the current being directly proportional to dissolved ozone concentration. In essence, the sensor operates like a battery, with zone causing current to flow. Since the sensor consumes ozone in the measurement, sample flow is required for measurement.