These compact and lightweight smart temperature transmitters receive thermocouple input, RTD input, or mV input and transmit it as a 4–20 mA DC or degital signal. They can be used with general-purpose signal cables, similar to other transmitters for flow or pressure measurement, eliminating the need for compensation wires or three-wire shielded cables. This reduces the cost of engineering work and is effective in increasing the reliability of signal transmission. Range setting changes and self-diagnosis can be done remotely via communication. Use of the optional built-in digital indicator makes it possible to check the temperature or device malfunctions in the field.