Skip to main content
  • Home
  • Seco-Larm Enforcer Large Reflective Beam Sensor, 50'

Seco-Larm Enforcer Large Reflective Beam Sensor, 50'


Usually ships in 3-5 days.


WARNING: Cancer and Reproductive Harm –


Monitor Wide Entryways

Perfect for monitoring garages and outdoor gates, the Seco-Larm Enforcer Large Reflective Beam Sensor (50’) triggers an alarm through a security system when its infrared (IR) beam is broken. The large size of both the sensor and the reflector provides a large sensing area for wide entryways, as well as easier alignment during installation. This sensor also features lensed optics to strengthen the beam and minimize false alarms due to rain, snow, falling leaves, birds, etc.

  • Up to 50-foot sensing range (sensor to reflector)
  • Suitable for indoor or outdoor use
  • Weatherproof with sunlight-filtering case
  • Adjustable response time from 50~700 ms
  • Mounting hardware included


  • Beam Sensor
  • Beam Reflector
  • (2) Hoods
  • (2) Mounting plates
  • (2) Mounting brackets
  • (2) Pole mounting brackets
  • L-Shaped mounting bracket
  • (4) Mounting screws
  • (4) Long screws
  • (6) Short screws
  • Rubber gasket

Building A Secure Future Since 1971

So many places and things to protect; so many ways to protect them; one partner: Seco-Larm. Under the Enforcer trademark, Home Controls offers an impressive line of Seco-Larm security products, ranging from simple switches to some of the most sophisticated alarm devices. Whether it’s physical security, CCTV, access control, RF equipment, or vehicle security, Seco-Larm is the premier choice. Seco-Larm gives its customers an extensive range of dependable, cost-effective security products with a full program of service and support.


  • Manufacturer Part #: E-931-S50RRLQ
  • Type: Reflective photoelectric beam sensor with large reflector
  • Sensing Range: Up to 50 feet (15m)
  • Operating Voltage: 12~250VAC/VDC
  • Current Draw: 100mA
  • Response Time: 50~700 ms (adjustable)
  • Light Source: IR LED
  • LEDs:
    • Red: No beam signal, triggered
    • Yellow: Poor beam signal
    • Green: Connected to power
  • Alarm Output: NO/NC relay, 0.5A at 120VAC, min. 1s
  • Tamper Output: NC switch, 0.5A at 30VAC
  • Alignment Angle: Horizontal: ±90 degrees; Vertical: ±15 degrees
  • Enclosure: IP55
  • Operating Temperature: -13° to 131°F (-25° to 55°C)
  • Dimensions*: 3-3/16 x 7-3/16 x 3-9/16 inches (81 x 182 x 91 mm)
  • Weight:
    • Sensor: 11.6 ounces (329g) with hood
    • Reflector: 5.9 ounces (167g) with hood
  • Approvals: ISO 9001, CE, RoHS
  • Warranty: 1 Year