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ORP (Oxidation Reduction Potential) is a common measurement in biochemistry, environmental chemistry and water quality.

For water system monitoring, the ORP value provides the operator with a rapid and single value assessment of the disinfection potential of water in the post harvest system. This enables the operator to assess the activity of the applied disinfectant rather than the applied dose.

ORPs in aqueous solutions are determined by measuring the potential difference between an inert sensing electrode in contact with the solution and a stable reference electrode. The reference electrode is connected to the solution by a salt bridge. It has a known potential and is made of silver chloride or saturate calomel. Platinum is mostly used for the sensing electrode.

The Oxygen-Reduction Potential, also known as Redox Potential describes the tendency of a chemical species or a solution to acquire electrons and therefore to be reduced. Each species has its own reduction potential. It is measured in Volts (V) or mV.

SRH1
Low maintenance sealed unit with gel filled reference cell suitable for general laboratory, swimming pools and water monitoring and control plan.

SRH1 AU
Low maintenance sealed unit with gel filled reference cell suitable for general laboratory, swimming pools and water monitoring and control plan

SRH3 PT
Low maintenance sealed unit with gel filled reference cell suitable for waste water, legionella disinfection, drinking water and galvanic process

SRH4 HT PT
Low maintenance sealed unit with gel filled reference cell suitable for ammonia application, chromium plating, reverse osmosis, galvanic process and bisulphite application.