Specifications:- Input: RTD/Thermocouple. Range: For thermocouple- 0 to +999 ºC, For RTD(Pt-100)- 0 to 800 ºC Accuracy: 0.3% ±1ºC 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 ºC, Humidity: 0 to 90 %Rh