Digital Temperature Controllers are panel mounting type process indicator controllers with universal input selectable from front keys between RTD Pt-100, J, K, R Thermocouple & 4-20mA. So, you can connect any temperature sensor , pressure transmitter, vacuum transmitter, level transmitter, etc. & get great accuracy on the digital readout. 2 Relay Outputs are available as standard. Optionally, 4-20mA Retransmission is available for connection onto PLC/DAQ/Data Loggers/Analog Card, etc.