The smart thermostat is a temperature controller suitable for underfloor heating systems. Check the operating condition of the electric valve of the underfloor heating system. Floor heating by comparing the resulting room temperature with the set temperature. In order to achieve the purpose of room temperature adjustment, comfort and energy saving. Product Description:The gas boiler thermostat adopts LCD digital display. Powered by two 1.5V batteries (not included). It is used to control the boiler to start or stop working to adjust the temperature. The thermostat detects the room temperature, and when the actual room temperature is lower than the set temperature, the thermostat commands the boiler to start operating. Then, when the actual room temperature is higher than the set temperature, the thermostat controls the boiler shutdown. Easy to install on the wall or put it somewhere. You can place it wherever you want;3)Display screen: LCD liquid crystal displayOuter frame color: whiteMaterial: PC+ABS flame retardantButton: Press the buttonAccessory function: Weekly Schedule/Stop MemoryCurrent: 3AVoltage: 2 x 1.5V batteries (not included)< /p>Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference in light and display, there are will have some color difference, depending on the physical object received Delivery Quantity: (according to the main image)