The temperature probe is used by the US Dallas Semiconductor digital temperature sensor DS18B20, good heat conductivity potting sealant has good water resistance, while maintaining a high sensitivity temperature sensor temperature and smaller delays. The temperature sensor support "bus line" interface, on-site temperature directly to the "bus line" digital transfer, which greatly improves the system's immunity, live temperature measurements for harsh environments. DS18B20 digital temperature sensor has a unique number, the temperature acquisition device can be identified by numbers corresponding to the temperature sensor.