Detailed Product Description Measure range:-50~+99oC Mounting size:71*29mm Auto switch between refrigerating and heating Retrun difference value All-purpose Temperature Controller STC-1000: Features: Switch the modes between cool and heat; Control temperature by setting the temperature setting value and the difference value; Temperature calibration; Refrigerating control output delay protection; Alarm when temperature exceeds temperature limit or when sensor error. Specification and Size: 1.Front panel size75(L)×34.5(W)mm; 2.Mounting size:71(L)×29(W)mm; 3.Product size75(L)×34.5(W)×85(D)mm; 4.sensor length2minclude the probe. Technical Parameters: 1. Temperature measuring range: -50~99oC; 2. Resolution: 0.1oC;3. Accuracy: ±1oC (-50~70oC); 4. Sensor error delay: 1 minute 5. Power supply: 12VAC±10%, 50/60Hz; 6. Power consumption: ≤3W; 7. Sensor: NTC sensor (1PC); 8. Relay contact capacity: Cool 10A/250VAC;Heat 10A/250VAC; 9. Ambient temperature: 0~60oC; 10.Storage temperature: -30~75oC; 11.Relative humidity: 20%~85% (No condensate). Package Content: 1PCS STC-1000 Temperature controller 12v