Temperature sensors TSM-205, TSP-205, TXA-205, TXK-205, TZhK-205 group 2 are designed for measuring the temperature of solid surfaces in various industries. They feature small sizes, improved thermal inertia parameters, and do not require complex installation work when mounted on site. Temperature is the most commonly measured parameter, and overheating is one of the most negative factors in equipment operation, therefore there are many methods and applications for temperature sensors. The operating principle of resistance temperature detectors is based on the change in electrical resistance of conductors and semiconductors depending on temperature. The material from which such a sensor is made must have a high temperature coefficient of resistance, preferably a linear dependence of resistance on temperature, good reproducibility of properties, and inertness to environmental influences. Platinum best meets all these properties; copper slightly less so. Thermocouples are purely differential temperature sensors. They generate an electrical signal proportional to the temperature difference between two points. Therefore, the junction (weld) we use to measure the required temperature is called the "hot" junction, while the other junction (which cannot be avoided) is called the "cold" junction. Classification of temperature sensors TSM-205, TSP-205, TXA-205, TXK-205, TZhK-205 REGMIK by type of measuring (sensitive) element Resistance temperature detectors (thermometers) – TSM, TSP; Thermoelectric converters (thermocouples) – TXA, TXK, TZhK; Semiconductor converters – TP. Main technical specifications of temperature sensors TSM-205, TSP-205, TXA-205, TXK-205, TZhK-205: Connection scheme of sensor leads – two-, three-, four-wire; By sensor type, they are divided into: Resistance temperature detectors (RTD, thermal resistance, thermometers, temperature sensors) (50M, 100M, 50P, 100P, Pt100, Pt500, Pt1000, Pt2000, Pt10000); Thermoelectric converters (TC, thermoelectric converters, thermocouples, temperature sensors) (TXA (K), TXK (L)); Semiconductor (DS18B20); Degree of protection against dust and water – IP54; Design of resistance temperature detectors (temperature sensors) – non-disassemblable; Insulation resistance – not less than 100 MOhm; Accuracy classes – A, B, C (for RTD), 1, 2 (for TC).