Specifications:- Input: RTDThermocouple. Range: For thermocouple- 0 to +999 C, For RTD(Pt-100)- 0 to 800 C Accuracy: 0.3% 1C Output: 2Relay Output. Control Mode: On-Off control mode, or PID control mode. Power Supply: 230 VAC 24 VDC 10% Indication: Seven Segment 3.5Digit LED Display. Operating Temperature: -10 to +60 C, Humidity: 0 to 90 %Rh