Feature: Apply microcomputer technology to keep precise measurement. Bright LED display, direct and clear to see data. Dual heating and cooling functions with the icon to indicate. Can adjust temperature difference and have adjustable output delay function to protect compressor. Have a water-proof sensor with 1m wire and sucker for better measurement. With 4 icons: SNOW, SUN, COOL and HEAT to indicate your operation. Specification: Color: As the picture show Temperature Measuring Range: -40 to 110 degree Celsuis Temperature Control Range: 16 to 40 degree Celsuis Resolution: 0.1 degree Celsuis Accuracy: /- 1 degree Celsuis Sensor: Water-proof NTC Sensor Sensor Cable Length: 1.05m Product Consumption: 3W Ambient Requirements: Temperature: -10 to 60 degree Celsuis; Humidity: 20 to 85 Item Size: 13.6 x 5.6 x 3.6cm / 5.32 x2.17 x 1.38in Main Body Package List: 1 x Thermostat