Fangrui Product Details Power Supply:ac 110v-220v Temperature Control Range:-55 Celsius-120 Celsius Resolution Ratio: 0.1 Celsius(-9.9-99.9); 1 Celsius(other Range) Measurement Accuracy: 0.1 Celsius Control Accuracy: 0.1 Celsius Sensor: Ntc10k Waterproof Sensor Output: Relay Contact Capacity: 10a 220v Environmental Requirements: -10-60 Celsius , Humidity -rh Sensor Wire: 1 Meter Function Description: P0: Refrigeration Or Heating Mode P1: Return Difference Setting P2: Maximum Temperature Setting Upper Limit P3: Minimum Temperature Setting Lower Limit P4: Temperature Correction P5: Delay Start Time (unit: Minute) Type: 1500w Colour:black Material:plastic Size:79 X 43 X 26mm Package Contents: 1 X Temperature Control Only The Above Package Content, Other Products Are Not Included. Note: Light And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.