SL-650QN SmartLine Outdoor Quad-Beam Photoelectric Detector, 650 ft Range

The Optex SL-650QN delivers professional-grade outdoor perimeter detection with quad-beam technology designed for long-range coverage. This SmartLine standard detector combines four independent photoelectric beams to monitor up to 650 feet, making it ideal for securing large exterior areas, parking lots, and facility boundaries.

Built for demanding outdoor environments, the SL-650QN features robust construction that withstands weather exposure while maintaining reliable beam alignment and signal integrity. The quad-beam configuration provides redundancy—partial blockage won't compromise detection, ensuring consistent protection even in dusty or partially obstructed conditions.

Key features include adjustable sensitivity, standard outdoor housing for UV and temperature resistance, and simple wired installation. The detector integrates seamlessly into existing security systems and pairs with compatible control panels for instant alarm notification.

Ideal for properties requiring extended-range perimeter detection without complex setup. The SL-650QN balances coverage distance, reliability, and ease of maintenance for security professionals and facility managers.