Sensors are devices that can detect a change in their environment and then call up a light scene. Many sensors respond to movement, but nowadays there are also Casambi sensors that can detect sound, vibration, opening doors (magnetic contact), Radar (looks right through walls). You will find them all below.
Many sensors also measure illuminance (Lux). In the Casambi app you can use this to automatically dim and dim lights.
Many sensors also measure illuminance (Lux). In the Casambi app you can use this to automatically dim and dim lights.