Passive infrared detector QUAD, reach 15 meters and antimasking. Internal protection of the PCB. Simple and elegant design with a single convex lens. Anti-masking by Active IR. Opto-relays for protection against the attack of large magnets. Tampers: cover and wall / corner. Corridor lenses (optional). BWare™ Wall / Ceiling Bracket RA51T (optional). Interior installation Power: 9 to 16 VDC. Maximum consumption: 41 mA. Dimensions: 127.6 x 64.2 x 46.6 mm.