Features 1Digital solar water heater thermostat it can be used for cooling and heating incubators easy to install and use. 2It is mainly used in solar water heating equipment using temperature difference and temperature to control output. 3Control the water valve to automatically add water when there is water shortage and automatically stop adding water. 4When the temperature difference reaches the set value the water pump cycle will automatically run to set the temperature in the two temperature zones. 5Control electric heating. When solar heating system does not exceed the heating temperature difference of set temperature electric heating system will automatically start heating to set temperature and automatically adjust temperature within temperature difference control range. Specification Condition: 100% Brand NewItem Type: ThermostatMaterial: ABSPower Consumption: 3WWorking Environment Temperature: -10-50 RH90%Heating Control Range: 2-99Temperature Difference Start Control: 3-50Resolution: 1Accuracy: 1Input Signal:2-Way Sensor: 20KX1.5mX2Size: Approx. 88x72x54mm / 3.5x2.8x2.1in Package List 1 x Thermostat2 x Sensor with Wire Note 1.Please allow 01 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.