All of this resistance thermometer TG 90 are designed to measure the temperature of gaseous substances. The sensor design provides a very fast response time of the sensor to changes in temperature when the sensing element is in direct contact with a gas to be measured. The maximum operating temperature range of the sensor is between -50 and 350 ° C (400 ° C for a short time). The range of each variant is reduced with one type of temperature sensing element and the power cable. On the side of the transition from the housing to a cable, the temperature sensors meet the protection standards IP 50 to IP 67 according to CSN EN 60529, depending on the power cable variant. The measuring part complies with IP protection according to CSN EN 60529.