Presence detector for ceiling mounting indoors. The sensor module detects moving heat sources (e.g. people) in an adjustable detection range and starts a staircase lighting time. The sensor module must be completed with an insert. For installation in a 60 mm flush-mounted box or in the surface-mounted housing available as an accessory. The sensor module has a light sensor with an adjustable brightness threshold so that the lighting is only switched on below a certain brightness threshold. The presence function allows the sensor module to switch the lighting off even if a person is present if there is sufficient natural light. The switchable light control (only in combination with dimmable inserts) ensures that the room is almost constantly brightly lit. The sensor module constantly measures the brightness in the room and regulates it by an adjustable setpoint. Functions Switching Brightness-dependent staircase lighting function - electronic switching insert. Relay switching insert. Brightness-dependent stair light function with channel 1, brightness-independent stair light function with channel 2 -Electronic switching insert, 2-way. Relay switching insert, 2-way. Dimming Brightness-dependent stair light function, light control -Universal dimmer insert. Control insert 1-10 V. DALI control insert. Channel 1 Brightness-dependent stair light function, light control. Channel 2 Brightness-independent stair light function, light control. Universal dimmer insert, 2-way. Global light control Brightness-independent stair light function -Central point insert. Detection angle 360 degrees. Number of levels 6. Number of zones 136. Number of motion sensors 4. Recommended installation height 2.5 m. Range radius of max. 7 m, corresponds to a diameter of 14 m (at an installation height of 2.50 m). Sensitivity continuously adjustable. Brightness threshold continuously adjustable from approx. 10 to approx. 1000 lux. Follow-up time channel 1 continuously adjustable from approx. 10 s to approx. 30 min. Channel 2 continuously adjustable from approx. 5 min to approx. 2 hrs. To be completed with central unit insert MEG5190-0000. Electronic switching insert MEG5151-0000. Electronic switching insert, 2-way MEG5152-0000. Relay switching insert MEG5161-0000. Relay switching insert, 2-way MEG5162-0000. Universal dimmer insert MEG5171-0000. Universal dimmer insert, 2-way MEG5172-0000. Control insert 1-10 V MEG5180-0000. DALI control insert MEG5185-0000. Accessory surface-mounted housing for ARGUS Presence 550619. Color: polar white.