Seco-Larm E-964-D390Q Twin Photobeam Multi-Frequency Detectors with Laser Beam Alignment, Up to 390ft Outdoor and 790ft Indoor Range, Sunlight-Filtering Enclosure, 4 Programmable Frequencies
PRICES MAY VARY. Built-in laser beam alignment system speeds accurate, reliable positioning Twin infrared beams provide reliable perimeter security, minimizing false alarms from falling leaves, birds, etc. Lensed optics reinforce beam strength & provide excellent immunity to false alarms due to rain, snow, mist, etc. Anti-frost system so that beam functions even in extreme conditions Automatic input power filtering with special noise rejection circuitry Seco-Larm E-964-D390Q Twin Photobeam Multi

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