With integrated KNX bus coupler. Targeted for connection and disconnection of lights bands depending on the room brightness. Regulation in response to the movement possible. Using the device as presence and/or movement detectors. Movement detector with up to two independent channels. Constant light switch with up to two independent channels. Constant light switch with max. 2 outputs for brightness-dependent switching of two light bands in the area. Detection range (for installation height 3 m): circular, 10 m diameter. Surveillance density: 72 sectors with 640 switching segments.