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Seco-Larm Enforcer Polarized Reflective Beam Sensor, 33 Ft.


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WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov


Reliable Detection In Any Weather

Monitor your garage, gate, driveway or doorway with the Seco-Larm Enforcer Polarized Reflective Beam Sensor (33'). This weatherproof sensor triggers an alarm in a connected security system when its infrared (IR) beam is broken. It also provides reliable detection of shiny objects (chrome bumper or other metallic material on a vehicle) that could be missed by a non-polarized sensor. The 3-1/4-inch round reflector can be installed discreetly on a wall or other flat surface. It provides a large sensing area for wide entryways, as well as easier alignment during installation.

  • Detects shiny objects (chrome bumper or other metallic material on a vehicle) that are typically missed by a non-polarized sensor
  • Up to 33-foot sensing range (sensor to reflector)
  • Suitable for indoor or outdoor use
  • Weatherproof with anti-condensation housing
  • Mounting hardware included

Wiring Information

  • Polarity does not matter for the power input
  • Connect the N.C. tamper terminal to the tamper circuit of your alarm control panel


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

NOTE: Requires a security system or alarm device to alert you when activated.

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-S33PRGQ
  • Sensing Range: 33ft (10m)
  • Operating Voltage: 12-30V DC/AC 60Hz, 100mA
  • Current Draw:
    • Standby: 55mA@12VDC
    • Active: 40mA@12VDC
  • Response Time: 10ms (max.)
  • Light Source: IR LED/Wavelength 740nm
  • LED:
    • Solid Green: Good beam signal, properly aligned
    • Alternating Flash: Poor beam signal
    • Solid Red: No beam signal, triggered
  • Trigger Output: SPDT Relay output (NO/NC/COM)
  • Switching Capacity: 0.5A at 30VAC/VDC
  • Tamper Switch: N.C., 500mA at 30VAC/VDC
  • IP Rating: IP55
  • Operating Temperature: -4°F to 131° F (-20° to 55° C)
  • Certifications: CE, RoHS
  • Warranty: 1 Year