Presence detector with a 360° detection area for ceiling mounting. Range of up to 8 m in diameter with a recommended mounting height of 3 m. 10 A high power relay. Zero-crossing switching prolongs the life of relays and lamps in electronic ballasts, such as fluorescent lights and LEDs, by gentle switching at zero-crossing. Factory setting for immediate operational readiness. Automatic light control depending on presence and daylight. Additional pushbutton input and remote control. Standard version as a surface-mounted device with a special surface-mounted box for extended wiring space, and recessed ceiling mounting with accessories. Extension of the detection area by parallel switching. Targeted blanking of areas using the enclosed lens mask.