Easy to install 2-channel smart thermostat kit features OpenTherm technology and manual override. Add Wiser radiator thermostats to create up to 16 heating zones. Control on the move via a simple app. Works with IFTTT. Supplied with standard backplate for easy installation. Works with - Amazon Alexa - Google Home - iOS App - Android App 5-30°C Temperature Range Suitable for System Boilers Battery-Powered Thermostat 2-Wire Receiver Backlit LCD Full Colour Display 2 Year Guarantee Smart Modes & Boost Available in App Geofencing via IFTT Smart Hub Supplied Works with - Amazon Alexa - Google Home - iOS App - Android App 5-30°C Temperature Range Suitable for System Boilers Battery-Powered Thermostat 2-Wire Receiver Backlit LCD Full Colour Display 2 Year Guarantee Smart Modes & Boost Available in App Geofencing via IFTT Smart Hub Supplied