SFGW series temperature transmitter includes thermal resistor temperature transmitter and thermocouple temperature transmitter which completed with different sensors to measure temperature. As the temperature transmitter using limited pressure-limiting, isolation and other measures, it increases the anti-interference ability and improves reliability of the system. the mainly function of instrument is that it converts all kinds of thermal resistor or thermocouple signal into standard DC signal and realize the isolated among input, output and power supply.