Ozone Measurement (O3)

O3 911 Probe for Ozone

Measuring cell for ozone with replaceable membrane caps.


  • Short response time
  • Minimal maintenance
  • Temperature compensation
  • No reagents required
  • Sturdy membrane
  • Easy to install

The probe head of the O3 911 contains two membrane-covered electrodes. When ozone reaches the electrodes, an electrochemical reaction occurs. This reaction produces a current proportional to to the concentration of ozone in the sample.

A sufficient flow rate (minimum 15 cm/s) is required for the measurement. We recommend to use a flow cell (available accessory).

Disinfection (drinking water, pool water)