as passive infrared detector for indoors, with Fresnel lenses in 2 layers with 18 segments, with a sensing angle of 180°, which can be reduced to 90° left or right using detachable blanking covers, with a sensing range to the front of approx. 10 m, with a sensing range to the side of approx. 6 m, with a potentiometer for stepless adjustment of the sensing range between 20 % and 100 %, with an integrated brightness sensor, with stepwise adjustable brightness limits from approx. 1 to 1000 lux (day mode to night mode), to be used over different application programs as stand-alone device or in primary and secondary operation, with optional cyclic transmission, with configurable overtravel time and dead time after the end of detection, with blocking and release of the signaling mode via external bus telegrams, for clipping onto a UP 110 or UP 114 bus coupling unit, with degree of protection IP20.