The tado° Extension Kit in white is a smart home device that allows you to control your heating and cooling system through Wi-Fi and app control. It comes with a wall-mounted sensor that measures temperature and allows you to adjust the thermostat accordingly. This device is compatible with Apple HomeKit, IFTTT (If This Then That), and Google Home/Assistant, making it a versatile addition to your smart home setup. It also comes with the wired bridge to allow full WiFi access. The kit is made of plastic and polycarbonate materials and comes with a corded electric power source. It features wireless wire configuration and app control, making it easy to use and manage. This tado° Extension K