SURFACES WALL MOUNTING - This mechanical thermostat for underfloor heating is designed to be mounted on interior wall surfaces, ensuring convenient access and easy control. WIDE TEMPERATURE RANGE - With a temperature range of +5/+40°C, this thermostat allows precise control of the ambient temperature, ensuring optimal comfort in any season. 【Automatic Control System】Perfectly suitable for automatic space heating control system, this thermostat efficiently regulates the temperature and provides a comfortable living environment. Indicator Light - The indicator light turns on while heating, providing a clear visual indication of the heating status and ensuring the user is aware of the operation. SAFETY AND ENERGY SAVING - Designed to meet the requirements of safety, energy saving and comfort, this thermostat offers a reliable and efficient solution for maintaining the desired ambient temperature.