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 20-85RH Sensor wire: 1 meter Function 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) Colour:black Material:plastic Size:79x43x26mm Package Contents: 1x Digital 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.