Most pH sensors have a normal life of 6 months to 1 year, depending on system and solution conditions. Ox idation is a principle that measures the solution s strength to either reduce or oxidize materials in a solution. The term Redox stands for simultaneously occurring reduction and oxidation process in aqueous solutions. In an oxidation process, electrons are transferred from the substance to be oxidized to the oxidant. Simultaneously, in oxidizing the substance, the oxidant is reduced.
Oxidants are electron acceptors and reducing agents electron donors.
Oxidizers are normally Caustic . Reduction agents are normally Acidic . Measurement of redox potential is pH dependent.