Works proactively to heat the home only when needed. Features automatic frost protection for pipes and provides temperature graphs to keep track of heating usage. Simple and clear design. Compatible with OpenTherm boilers, offering efficiency and reduced boiler wear and tear. Works with - Amazon Alexa - Apple HomeKit - Google Home - iOS App - Android App 5-25°C Temperature Range Suitable for Combi Boilers Battery-Powered Thermostat 2-Wire Receiver Touchscreen Display 1 Year Guarantee Smart Hub Supplied Works with - Amazon Alexa - Apple HomeKit - Google Home - iOS App - Android App 5-25°C Temperature Range Suitable for Combi Boilers Battery-Powered Thermostat 2-Wire Receiver Touchscreen Display 1 Year Guarantee Smart Hub Supplied