Pir Detektor 360°, Ø7,5M. HvidDS936 Low Profile Panoramic PIR Detector Enhanced signal processing 360 x 7. 5 m (24 ft) pattern Surface semi flush mountable The ceiling mount, low profile panoramic DS936 PIR Detector uses alternate polarity pulse count. It also uses a Fresnel lens to provide up to 7. 5 m of coverage and can be mounted on the surface, or semi flush directly to a ceiling or a standard octagonal electrical box. Technical specifications Mechanical Material High impact