MAIN FEATURES  Covers and spacers included  Mounting screws included  Rugged construction  Easy installation  Attractive low profile design, with a professional look and feel  UV stabilized anti-aging virgin polymers PROFESSIONAL GRADE FEATURES  High grade magnets  1 Form A (SPST) contact  Maximum contact rating, 28 VDC, 1A  19-mm (0.75-in.) wide gap  Meets or exceeds USA Standard UL 639, Intrusion Detection Units  Meets or exceeds CENELEC 50131-2-2 PIR Standard, Security Grade 2, and Environmental Grade 1