Description
The SECO-LARM E-931-S33PRGQ Polarized Reflective Photoelectric IR Beam Sensor is an ETL-listed reflective photoeye designed for automatic gate operators, overhead doors, vehicle detection systems, access control applications, and perimeter security installations. Featuring advanced polarized reflective beam technology, this sensor is specifically engineered to eliminate false triggering caused by shiny or reflective surfaces, making it an excellent choice for challenging environments where standard reflective sensors may experience detection issues.
With a sensing range of up to 33 feet, the E-931-S33PRGQ delivers reliable obstacle detection for residential, commercial, and industrial gate systems. The polarized infrared beam ensures accurate object detection while ignoring unwanted reflections from polished vehicles, metal surfaces, and other reflective objects commonly found around gate entrances and parking facilities.
The sensor features a durable IP55 weatherproof housing, anti-condensation design, built-in beam status indicators, and a compact installation footprint. Its relay output configuration supports integration with a wide variety of gate operators, access control panels, alarm systems, and automation equipment.
Key Features
- Polarized reflective photoelectric beam technology
- ETL listed for professional installations
- Up to 33 ft sensing range
- Immune to false triggers from shiny or reflective surfaces
- IP55 weatherproof housing
- Anti-condensation enclosure design
- Fast 10ms response time
- SPDT relay output (NO/NC/COM)
- Beam status LED indicators
- Form C relay output
- Includes reflector
- Ideal for gate operator safety and vehicle detection
Ideal Applications
- Automatic gate operators
- Slide gates
- Swing gates
- Vehicle detection systems
- Commercial parking facilities
- Access control entrances
- Garage doors
- Overhead doors
- Industrial automation systems
- Perimeter security installations
Specifications
- Model: E-931-S33PRGQ
- Technology: Polarized Reflective Photoelectric Beam Sensor
- Sensing Range: Up to 33 ft (10m)
- Operating Voltage: 12-30V DC/AC, 60Hz
- Current Draw:
- Standby: 55mA @ 12VDC
- Active: 40mA @ 12VDC
- Response Time: 10ms Maximum
- Trigger Output: SPDT Relay (NO/NC/COM)
- Switching Capacity: 0.5A @ 30VAC/VDC
- Tamper Switch: N.C. 500mA @ 30VAC/VDC
- Protection Rating: IP55 Weatherproof
- Operating Temperature: -4°F to 131°F (-20°C to 55°C)
What's Included
- SECO-LARM E-931-S33PRGQ Sensor
- Reflector
- Mounting Hardware
- Installation Documentation
Why Buy From GatePoint Solutions?
GatePoint Solutions supplies contractor-grade photoeyes, monitored safety sensors, access control equipment, and gate operator accessories backed by expert support and fast shipping. We help homeowners, installers, and facility managers build safer and more reliable automated entry systems.

