The sensor temperature measuring of the steel equipment or axle bearing is designed to measure the temperature of axle boxes with the transferring data to wagon controller. The temperature sensor is attached directly to the axle box cover with a bolted connection. The power element of the temperature measuring sensor is a built -in battery. Fastening type bolted joint; Range of working temperatures 40 + 85 C Range of measured temperatures 40 + 125 Accuracy of temperature measurement 0.5 Frequency plan EU433 ; The period of communication is adjusted; Type of antenna built-in ; Sensitivity -114 dBm ; Radio communication range in the tunnel up to 100 m ; Transmitter output power up to 20 mW ; Built-in battery capacity 2700 mAh ; Continuous battery life p to 2 years ; Dimensions, mm not more than 119 x 32 x 32 ; Weight, g, not more than 300 ; Total service life, years, not less than 10 ; The operating mode is long ; Dust and water protection rating IP65.