Provides room temperature control of heating systems within the home, in a slim, modern design with simple functionality. Features large and clear LED segment display with a wake-up button. Compatible with heat pumps, zoning, underfloor heating and cooling devices, as well as zone valve applications and boilers, including solid fuel. Not suitable for use with electric heating (240V). 5-35°C Temperature Range Suitable for Combi & System Boilers 2-Wire Installation Mains-Powered with Battery Backup LED Digital Display Insulated Frost Protection Wall-Mounted 5-35°C Temperature Range Suitable for Combi & System Boilers 2-Wire Installation Mains-Powered with Battery Backup LED Digital Display Insulated Frost Protection Wall-Mounted