Optex SL-650QDM SmartLine Professional Outdoor Photoelectric Quad-Beam Detector with Automatic Transmit Power Control, 650' Range

Protect expansive outdoor perimeters with the Optex SL-650QDM photoelectric beam detector — engineered for reliable security, surveillance and real-time monitoring in demanding environments. This SmartLine quad-beam detector delivers up to 650' of outdoor detection range and uses double modulation plus Automatic Transmit Power Control to reduce false and missed alarms caused by fog, frost, sun glare and signal interference. The four-beam configuration dramatically lowers nuisance triggers from birds and foliage while 4-channel frequency selection and Beam Power Control let integrators avoid crosstalk in multi-beam setups. Installers benefit from the Sniper Viewfinder and Alignment Sound Assist for fast, precise aiming; BAU-4 compatibility enables single-tech alignment on long runs. Built to last outdoors, the SL-650QDM features IP65 waterproofing and Sunshine Protection Technology for stable performance near headlights and bright ambient light. Ideal for high-security perimeters, critical infrastructure, and commercial sites that require dependable detection and easy maintenance. Specify the Optex SL-650QDM for robust perimeter detection — contact sales or add to cart to streamline your next surveillance deployment.

• Long-range perimeter protection: 650' outdoor detection covers large sites with dependable monitoring to reduce blind spots
• Quad-beam design for nuisance-reduction: four independent beams cut false alarms from birds, leaves and small animals
• Automatic Transmit Power Control (A.T.P.C.): maintains optimal beam strength in fog, frost or glare to prevent missed alarms
• Faster, accurate installs: Sniper Viewfinder and Alignment Sound Assist speed alignment so technicians finish jobs quickly
• Durable outdoor performance: IP65 construction and Sunshine Protection Technology resist weather, headlights and strong light sources
• Flexible deployment: 4-channel frequency selection and BAU-4 alignment compatibility let you scale multi-beam perimeter systems without crosstalk