Bullet_point: ['Built-in alignment strength indicator, interruption time adjustable for nearly all situations', 'Built-in laser beam alignment system speeds accurate, reliable positioning, multi-frequency (4 channels selectable)', 'NO/NC alarm output, N.C. tamper circuit included, non-polarized power inputs, quick, easy installation with built-in laser beam and audible alignment system', 'Quad infrared beams provide reliable perimeter security, minimizing false alarms from falling leaves, birds, and other, lensed optics reinforce beam strength and provide excellent immunity to false alarms due to rain, snow, mist, etc', 'Weatherproof (IP55), sunlight-filtering case for indoor and outdoor use, anti-frost system with built-in heater so that beam functions even in extreme conditions, automatic input power filtering with special noise rejection circuitry']

Products with this attribute (1 total)