For system design. Presence detection indoors. When the KNX ARGUS presence sensor detects small movements in the room, data telegrams are sent 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 if a person is present. The delay time is adjustable via ETS. With integrated bus coupler. For wall mounting in a 60mm installation box, optimal use at 2.2m height. With anti-creep protection. Software functions KNX: five motion/presence blocks, up to four functions can be triggered per block. Telegrams: 1 bit, 1 byte, 2 bytes. Normal operation, master, slave, monitoring, security pause, blocking function. Two motion sensors: sensitivity and range can be adjusted 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 180 degrees. Range 8m left/right, 12m forward (at a mounting height of 2.20m). Mounting height 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 approx. 10 to 2000 Lux (ETS), external light sensor via KNX. EC 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: painted thermoplastic. Color: champagne metallic.