Passive infrared outdoor detector. Spherical fresnel lens. Corridor cover: 24 x 2 m (12 zones), pet alley (4 zones). Sensibility: 3 positions. Optional alarm indicator. Pulse counter (approx 20 sec.) 1 or 2. RFI protection (20 V / m from 100MHz to 1 GHz). IP54. Power 10.8 - 13.2 VDC, consumption 25 mA max.