ABH-250L ALEAN Active Quad Infrared Beams 250m. The ALEAN ABH-250L is a high-performance active infrared beam barrier designed for reliable perimeter protection in both residential and commercial security installations. Engineered for outdoor and indoor use, this wired detection system features a quadruple beam configuration that enhances accuracy while significantly reducing false alarms caused by environmental interference. With a maximum detection range of up to 250 meters outdoors and 750 meters indoors, the ABH-250L is ideal for securing large perimeters such as industrial facilities, warehouses, and private properties. Its four synchronized infrared beams operate using selectable AND/OR logic, allowing the system to trigger an alarm either when all beams are interrupted simultaneously or when only a subset is breached, depending on the installation requirements. The device incorporates advanced digital signal processing (DSP) and optical filtering technologies to maintain stable performance under challenging weather conditions, including rain, fog, snow, and direct sunlight. Adjustable interruption times (50 ms to 700 ms) provide additional flexibility, enabling installers to fine-tune sensitivity and response according to the environment. Installation and alignment are streamlined thanks to a wide adjustment range (±90° horizontal and ±10° vertical) and a built-in LED or LCD display that offers real-time signal strength feedback. Configuration is handled באמצעות DIP switches, supporting four selectable frequency channels to prevent interference between multiple beam pairs. The ABH-250L is housed in a robust IP65-rated enclosure, ensuring protection against dust and water ingress, and operates reliably in temperatures from -25°C to 55°C. Additional features include tamper protection, relay alarm outputs (NO/NC), and compatibility with most alarm control panels. Overall, the ALEAN ABH-250L delivers a balanced combination of long-range detection, environmental resilience, and flexible configuration, making it a dependable solution for professional-grade perimeter security systems. Features NC/NO relay outputs, compatible with other brand alarm systems like Honeywell,Bosch,Paradox,DSC,and GE etc. Digital filter technology,well performance against direct sunlight,fluorescent and car light. Integrated tamper switch, truns on when cover is moved. Different frequencies selectable for long distance and stacking installation. LED display signal grade for easy alignment. Wide voltage and energy-saving design. Adjustable interruption time (50/100/300/700msec optional). IP65 waterproof grade. Alignment angle horizontal ±90°,vertical ±10°. Anti-RFI interference, high environment adaptability to eliminate false alarms. Dimension (L*W*H): 395mm×105mm×100mm New and Original product with the quality of ALEAN
