tado° controls the heating in your home based on the temperature measured by your tadoº devices. The Wireless Temperature Sensor X should be placed strategically to ensure that tado° can heat your home as efficiently as possible.
In the most used room of your home
The room that is used most often is usually also the warmest room in your home. If you place the Wireless Temperature Sensor in a colder room, it would measure a lower temperature and heat your home unnecessarily. It is also possible to place Wireless Temperature Sensors in multiple rooms in your home for greater control.
Away from direct heat sources or air drafts
Do not place the Wireless Temperature Sensor near a radiator, fireplace, in a place that is directly exposed to the sun, or near other heat sources (for example, on top of a TV or Hi-Fi system). This will cause it to heat up and show a higher temperature than you would feel in the rest of the room. The same applies to sources of cold airflow, like windows or doors to colder rooms.
Around 1.5 meters above the floor
Colder air is heavier and sinks, which makes the air temperature cooler close to the floor. If you place the Wireless Temperature Sensor too low, it will measure a lower temperature and heat the room unnecessarily.