https://www.badgermeter.com/en-gb/products/water-quality-monitoring/physical-sensors/hyperlyser-h2o2-physical-sensor/
hyperlyser Hydrogen Peroxide Physical Sensor | Badger Meter
The hyperlyser is an amperometric sensor for monitoring hydrogen peroxide. It is ideal for all kinds of water treatment and produces stable readings.
hydrogen peroxidephysical sensorbadgermeter