Wireless temperature sensor offers convenient control of multiple thermostats from one place, with efficient heating and energy savings. Each room can be controlled individually. Easy to install on a wall using the guide in the app. Can also be placed on a surface, or on a Tado stand (sold separately) for additional stability. Works with Tado app for viewing energy savings, including comparisons with previous months. Provides alerts in the event that heating behaves unusually, and user help for solving any problems. Optional Auto-Assist package available (subscription required) offering automatic features such as Geofencing and Open Window Detection rather than sending a notification. Sensor can be connected to other Matter-compatible devices and brands. Requires Tado Bridge X or another Thread border router (both sold separately). Please note that this product is not compatible with Tado V3+ products or older. Works with - Matter - Amazon Alexa - Apple HomeKit - Google Home - iOS...