3-channel smart thermostat kit suitable for system boilers with two heating zones, easy to install on standard wallplate. Features OpenTherm technology and manual override. Add Wiser radiator thermostats to create up to 16 heating zones. Geofencing via IFTTT. Control on the move via a simple app. 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 Geofencing via IFTTT OpenTherm Technology 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 Geofencing via IFTTT OpenTherm Technology Smart Hub Supplied