ITEM NAME:STC-1000 Electronic Digital Temperature Controller Thermostat (DC 12V) Product Description Description: STC-1000 Electronic Digital Display Temperature Controller Thermostat Microcomputer Temperature Module Switch Thermoregulator Features: Auto 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. Specifications: Dimensions: Front Panel Size: 75mm/2.95"(L)x34.5mm/1.36"(W) Mounting Size: 71mm/2.8"(L)x29mm/1.14"(W). Product Size: 75mm/2.95"(L)x34.5mm/1.36"(W)x85mm/3.35"(D) Temperature measuring range: -50~99℃. Resolution: 0.1℃. Accuracy:  ±1℃ (-50~70℃). Sensor error delay: 1 minute. Power supply: 24V AC/DC. ≠¤3W.  12V AC/DC. 3W Power consumption: Relay contact capacity: Cool 10A/250VAC; Heat 10A/250VAC. Ambient temperature: 0~60℃. Storage temperature: -30~75℃. Relative humidity: 20%~85% (No condensate). Voltage: DC 12V, DC 24V, AC110-220V Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow slight measuring deviation due to manual measurement. Included: 1 X Thermostat.Included: 1 X Thermostat. Alarm when temperature exceeds temperature limit or when sensor error. 12V AC/DC. Relative humidity: 20%~85% (No condensate). Auto switch the modes between cool and heat.