Ion Selective Electrodes, ISEs, are analytical tools widely used for potentiometric analysis of large scale of various ionic analytes. ISEs enable routine analysis in agriculture, food process, soil analysis, environmental anylysis, tribotechnical analysis, explosives and pyrotechnical mixtures analysis. They can be used for water, pot-, waste-, boiler-, mineral-, and well water samples. Electrodes are applicable to all commonly used measuring apparatus, with internal resistance of above 109 – 1012. Standard electrical connecting cable is 0.8 to 1 m. coaxial cable with BNC connector. The work with ion selective electrodes is time effective, requires an only small amount of chemicals, and a friendly price of measuring equipment MPH471.