For System M. Presence detection for indoor use. When the KNX ARGUS presence sensor detects small movements in the room, it sends data telegrams via KNX to simultaneously control lighting, blinds, or heating, for example. In brightness-dependent motion detection for lighting control, the device continuously checks the brightness in the room. If there is sufficient natural light, the device turns off artificial light even when a person is present. The delay time can be adjusted via ETS. With integrated bus coupler. Designed for wall mounting in a 60mm installation box, optimal use at 2.2m height. Features intrusion protection. KNX software functions: five motion/presence blocks. Up to four functions can be triggered per block. Telegrams of 1 Bit, 1 Byte, 2 Bytes. Normal operation, Master, Slave, Monitoring, Security pause, Lock function. Two motion sensors. Sensitivity and range can be set separately for each sensor. Learnable stair light duration. The actual brightness value can be detected via the internal and/or an external light sensor. Value correction. Detection angle of 180 degrees. Range of 8m to the left/right, 12m forward (at a mounting height of 2.20m). Mounting height of 2.2m or 1.1m with halved range. Time adjustable in steps from 1s to 8min (potentiometer) or adjustable from 1s to 255 hours (ETS). Number of levels: 6. Number of zones: 46. Number of motion sensors: 2, adjustable separately. Light sensor: internal light sensor continuously adjustable from approximately 10 to 2000 Lux (ETS), external light sensor via KNX. EU directives: Low Voltage Directive 2006/95/EC and EMC Directive 2004/108/EC. Delivery includes: bus connection terminal and mounting plate. With cover segments to restrict the detection area. Material: thermoplastic with a fine matte finish. Color: anthracite.