Seco-Larm E-964-D390Q Twin Photobeam with Laser Alignment, 390ft

Long Range Photobeam Detectors are easy-to-install with laser beam alignment and provide extended range. Designed to provide reliable perimeter security both indoors and outdoors. With the new E-964-D390Q, four selectable beam frequencies reduce interference between multiple units for enhanced perimeter protection.

• 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.
• Weatherproof (IP55), sunlight-filtering case for indoor & outdoor use
• Anti-frost system so that beam functions even in extreme conditions
• Automatic input power filtering with special noise rejection circuitry
• NC/NO alarm output
• N.C. tamper circuit included
• Non-polar