Access detector / passage detector, PIR motion detector (10m x 100°) reacts to body heat and activates either the built-in gong or the 85 dB(A) siren. Ideal for door monitoring. For wall or ceiling mounting or for standing up. Connection for doorbell button or magnetic contact MK02 (triggers gong sound). Power supply via 9V block battery or plug-in power supply 9V (NG600U, item no. 32108). Delivery without battery / power supply. Dimensions: 77 x 42 x 70mm.