Optex SL-350QDM SmartLine Professional Outdoor Photoelectric Quad-Beam Detector with Automatic Transmit Power Control, 350' Range

Protect large perimeters and critical outdoor assets with the Optex SL-350QDM photoelectric beam detector — a professional-grade solution engineered for reliable intrusion detection and surveillance. The SL-350QDM’s quad-beam design and 4 selectable channels provide redundancy and flexibility when stacking multiple beam sets, delivering secure coverage up to 350' (100 m). Built-in automatic transmit power control and double modulation maintain a stable signal even in strong sunlight and harsh weather, reducing nuisance alarms and ensuring continuous monitoring.

Installers benefit from the Sniper Viewfinder, 2x magnification, five-stage signal LEDs and a receiver sound gauge for fast, accurate alignment that minimizes commissioning time. The IP65, UV-resistant housing with frost hoods resists dust, water and UV degradation for long-term outdoor reliability. For modern security networks, the SL-350QDM can be connected to IP/PoE systems via Optex’s PIE-1 module for centralized surveillance and event reporting.

Ideal for perimeter, rooftop and driveway protection, the SL-350QDM combines robust detection performance with easy installation. Add it to your security or CCTV monitoring system to proactively detect intrusions and strengthen perimeter defenses.

• Delivers dependable long-range perimeter protection up to 350' to detect intrusions before they reach assets
• Automatic transmit power control and double modulation reduce false alarms from sunlight and environmental noise for consistent monitoring
• Quad-beam, 4-channel design improves detection reliability and allows stacking in beam towers for scalable perimeter coverage
• Sniper Viewfinder, signal LEDs and receiver sound gauge speed installation and alignment, cutting commissioning time and service calls
• Rugged IP65, UV-resistant housing with frost hoods provides durable outdoor performance for rooftop, driveway and garden security systems
• Optional IP/PoE connectivity (with PIE-1 module) enables integration with networked surveillance and monitoring platforms