Limited Liability Company "Production Company "TESEY", established in 1992, is today one of the leaders among Russian manufacturers of temperature measuring instruments - thermoelectric converters, resistance temperature converters and protective sleeves for their installation on objects. A distinctive feature of thermoelectric converters manufactured by PC Tesey is that a cable thermocouple is used as a temperature-sensitive element. Through the efforts of the company's specialists, the technology for manufacturing cable thermocouples, which was developed for nuclear industry facilities, was adapted to the production of general-purpose temperature converters. Many years of experience in the market of measuring instruments has shown that this is a modern type of sensors and offered by the manufacturer, has undoubted technical and operational advantages over traditional wire thermocouples.

The product range of the company includes more than 100 design modifications of thermoelectric converters of various types, more than 30 modifications of resistance temperature converters, reference temperature converters, protective sleeves of 15 modifications.