Product_description: ["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 Key Features<ul> <li>Built-in laser beam alignment system speeds accurate, reliable positioning</li> <li>Twin infrared beams provide reliable perimeter security, minimizing false alarms from falling leaves, birds, etc.</li> <li>Lensed optics reinforce beam strength & provide excellent immunity to false alarms due to rain, snow, mist, etc.</li> <li>Weatherproof, sunlight-filtering case for indoor & outdoor use</li> <li>Anti-frost system so that beam functions even in extreme conditions</li> <li>Automatic input power filtering with special noise rejection circuitry</li> <li>NC/NO alarm output</li> <li>N.C. tamper circuit included</li> <li>Non-polarized power inputs</li> <li>Quick, easy installation with built-in laser beam alignment system</li> <li>Interruption time adjustable for nearly all situations</li></ul> Specifications<ul> <li>Current Draw: 88mA</li> <li>Sensing Range: Outdoor- 390' (120m), Indoor- 790' (240m)</li> <li>Operating Voltage: 10~30VAC / VDC (Non-polarized)</li> <li>Interupt Speed: 50msec~700msec (variable)</li> <li>LEDs - Red: Alarm LED ON: When transmitter and receiver are not aligned or when beam is broken</li> <li>LEDs - Yellow: Tuning LED (Receiver) ON: When receiver's signal is weak or when beam is broken</li> <li>LEDs - Green: Operation LED (transmitter & receiver) ON: Indicates connected to power</li> <li>Detection System: Simultaneous break of 2 beams</li> <li>Alarm Output: NO/NC relay, 1A @ 120VAC, min. 1 sec</li> <li>Tamper Output: NC switch, 1A@120VAC</li> <li>Case material: PC Resin</li> <li>Laser Wavelength: 650nm</li> <li>Operating Temperature: -13º~+131ºF</li> <li>Laser Output Power: <5mW</li> <li>Alignment Angle: Horizontal (+/-)90º, Vertical: (+/-)5º</li> <li>Weight: 2.5-lb</li></ul>", 'SAME AS THE E 960 D90Q BUT HAS 4 PROGRAMMABLE FREQUENCIES AND THE RANGE IS 390 FT 120 METERS OUTDOOR AND 790 FT 240 MET']

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