SECO LARM E-964-D390Q - Twin Photobeam Multi-Frequency Detectors with Laser Beam Alignent - Range 390ft. outdoors, 790ft. indoors

Seco-larm E-964-D390Q ENFORCER Long Range Photobeam Detector is easy-to-install with laser beam alignment and provide extended range. Includes four selectable beam frequencies to reduce interference between multiple units for enhanced perimeter protection. Designed to provide reliable perimeter security both indoors and outdoors. The E-964-D390Q range: 390ft. (120m) outdoors, 790ft. (240m) indoors. Specification * E-964-D390Q range: 390ft. (120m) outdoors, 790ft. (240m) indoors * 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, 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. * N.C./N.O. alarm output. * N.C. tamper circuit included. * Non-polarized power inputs. * Quick, easy installation with built-in laser beam alignment system. * Interruption time adjustable for nearly all situations.