Temperature sensor is to point to to feel the temperature and convert it into a usable output signal of the sensor, products after pulling force, vibration, landing, high and low temperature, resistant to moisture, high and low temperature cold circulation rigorous experimental, with high reliability, long life, by the impact of the working environment and characteristics of. Matched with the vehicle mdvr equipment, in order to achieve high / low temperature alarm, alarm data statistics, reporting, analysis and query.