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Seco-Larm Enforcer IR Reflective Photoelectric Beam Sensor, 50 ft.


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WARNING: Cancer and Reproductive Harm –


Monitor Your Yard Rain or Shine

Monitor your garage, gate, driveway or doorway with the Seco-Larm Enforcer Photoelectric Beam Sensor (50'). This weatherproof sensor triggers an alarm in a connected security system when its infrared (IR) beam is broken. The 3-inch round reflector can be installed discretely on a wall or other flat surface. It provides a large sensing area for wide entryways, as well as easier alignment during installation. This sensor also features lensed optics and dual-color LEDs 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
  • Near immediate response time from 10ms
  • Mounting hardware included


  • Sensor
  • Reflector
  • Mounting Bracket
  • Sensor Hood
  • (4) Cover Screws
  • (2) Mounting Screws
  • Reflector Mounting Screw
  • Rubber Ring
  • Cable Connector
  • Manual
  • Removable Terminal Block
  • 10KΩ Resistor

Seco-Larm Security Products

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 for physical security, CCTV, access control, RF equipment, or vehicle security, Seco-Larm is the premier choice. Seco-Larm gives its customers such an extensive range of dependable, cost-effective security products with a full program of service and support.


  • Manufacturer Part #: E-931-S50RRGQ
  • Type: Reflective photoelectric beam sensor
  • Sensing Range: Up to 50 feet (15m)
  • Operating Voltage: 12~30DC/ADC, 100mA
  • Current Draw: Standby:55mA@12VDC Active:40mA@12VDC
  • Response Time: 10ms
  • Light Source: IR LED
  • LEDs:
    • Solid Red: No beam signal, triggered
    • Alternating Flash: Poor beam signal
    • Solid Green: Good beam signal, properly aligned
  • Alarm Output: NO/NC relay, 0.5A at 120VAC, min. 1s
  • Tamper Switch: NC switch, 500mA@30VAC/VDC
  • Alignment Angle: Horizontal: ±90 degrees; Vertical: ±15 degrees
  • Enclosure: Weatherproof IP55
  • Operating Temperature: -13° to 131°F (-25° to 60°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