Optex SL-350QN Outdoor Quad Beam Detector

Product Description

The OPTEX SL-350QN is an outdoor quad beam photoelectric detector designed for perimeter security and access control applications. Quad beam technology uses four stacked infrared beams to reduce nuisance trips caused by small animals, blowing debris, or other transient obstructions that would trigger a single-beam unit. The detector is built for outdoor installation in conditions where reliable beam-break detection is required across a defined zone. Licensed security technicians and alarm installers are the primary trades working with this type of device.

The SL-350QN is suited for commercial and residential perimeter protection where outdoor environmental factors demand a more robust sensing solution than a standard single or dual beam. Typical installations include driveway entries, building perimeters, gated access points, and fence lines where consistent detection with low false-alarm rates is a priority. The quad beam configuration makes it appropriate for sites with moderate vegetation movement or wildlife activity.

Key Features

• Quad beam infrared detection reduces false alarms from small animals and airborne debris
• Designed for outdoor installation with exposure to weather and varying light conditions
• Sold as a single unit (each), suitable for paired transmitter-receiver setups
• Photoelectric beam category device for perimeter intrusion detection

Compatibility

Designed as an OEM-style replacement or new-installation outdoor quad beam photoelectric detector for perimeter security systems requiring infrared beam-break sensing.

Installation Notes

Installation is typically performed by licensed alarm or low-voltage security technicians in accordance with local codes and manufacturer alignment specifications. Power down the associated control panel zone before wiring the unit. Proper post or wall mounting at consistent height on both transmitter and receiver sides is critical for beam alignment and reliable detection. Do not install where permanent obstructions fall within the beam path.