You can determine whether people are present or not with presence detectors and motion detectors. You can link actions, such as lighting in the storeroom or the comfort temperature in the living room, to presence. In this case, presence detectors are used in rooms where people spend extended periods.

The detectors have more refined detection and can therefore recognise even smaller movements, for example a person at a desk. For areas that are only used briefly (such as hallways or side rooms), motion detectors are used. They have a detection angle that prevents them from detecting small pets.

Measuring sensors give values to your KNX system, which the system can use to control the home technology. A VOC sensor is installed to measure the air quality in the room. The measured values can either be displayed as red-yellow-green traffic light values in a visualisation, or you can have the ventilation switched on immediately from a particular threshold value. The humidity sensor is also interesting for ventilation. It is installed in the bathroom and its values are used to provide fresh air automatically after showering. In all rooms there is a temperature sensor, and its values are crucial for the heating control.

In passageways without motion detectors, it is advisable to use a brightness sensor that will provide values that will brighten an orientation light if there is not enough light. A weather station is installed for the outdoor area. This provides information about the wind speed, the outdoor temperature and the solar radiation. An additional sensor can also provide information about rain. These values are particularly relevant for controlling the sunshade, which can then be perfectly adjusted to the current weather situation.