Hydrogen peroxide (H2O2) is an extremely-powerful oxidizer widely used in bleaching applications and in the paper industry

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Hydrogen peroxide is also used for washing food products and for disinfecting cooling water systems. As a disinfectant agent it is often preferred to chlorine-based products because it does not separate into potentially harmful products. Hydrogen peroxide sensors are amperometric devices isolated from water by a permeable membrane. When the peroxide diffuses through this membrane, it comes into contact with an active electrode and reduces on its surface and, consequently, the sensor generates a current proportional to its concentration.

The sensors require a constant flow of the liquid under test through the membrane placed on the tip of the probe. Sample agitation is required and therefore not recommended in still water. peroxide sensor with low flow rate dependence, with 4-20 mA output, membrane resistant and insensitive to surfactants and automatic thermal compensation. Guaranteed precision and accuracy, plus quick commissioning thanks to reduced initialization times. No faults caused by turbidity or colouring courtesy of the amperometric measurement principle.

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