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 showTemperature Measuring Range: -40 to 110 degree CelsuisTemperature Control Range: 16 to 40 degree CelsuisResolution: 0.1 degree CelsuisAccuracy: /- 1 degree CelsuisSensor: Water-proof NTC SensorSensor Cable Length: 1.05mProduct Consumption: 3WAmbient Requirements: Temperature: -10 to 60 degree Celsuis; Humidity: 20 to 85Item Size: 13.6 x 5.6 x 3.6cm / 5.32 x2.17 x 1.38in Main Body Package List:1 x Thermostat