Authorized Seco-Larm Reseller

Seco-Larm E-931-S50RRGQ Reflective Photoelectric Beam Sensor, ETL UL325 Compliant, 50ft

Seco-LarmSKU: E-931-S50RRGQ

Sale price$75.26
Usually ships within 3-5 business days
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  • For outdoor gates, garage doors, etc.
  • Weatherproof (IP55) construction for indoor/outdoor use
  • Anti-condensation housing
  • Dual-color LED alignment system
  • Form C relay: 500mA@30VAC/VDC
  • Tamper switch: N.C. 500mA@30VAC/VDC
  • 31/4” (82mm) Round reflector with hood included
  • Compact size
  • Monitored output: N.C., 10kΩ Resistor

 Typical Applications

  • For garage or overhead doors, outdoor gates
  • Industrial automation: detect objects on manufacturing line



Type Reflective photoelectric beam sensor
Current Draw Standby – 55mA@12VDC, Active – 40mA@12VDC
Sensing Range Up to 50′ (15m)
Operating Voltage 12-30V DC/AC 60Hz, 100mA
Reaction time 10ms
Light Source IR LED
LEDs – Red Solid, No beam signal, triggered
LEDs – Green Solid, Good beam signal, properly aligned
LEDs Alternating Flash – Poor beam signal
Alarm Output SPDT relay output (NO/NC/COM)
Switching Capacity 500mA@30VAC/VDC
Tamper Switch 500mA@30VAC/VDC
Operating Temperature -13º~140º F (-25º~60º C)
Enclosure Weatherproof IP55



Sensor does not detect the object.
  • Change the angle of the sensor or readjust the sensitivity setting
The beam sensor LED will not turn green
  • Clean the sensor and reflector with a damp (not wet) cloth
  • Apply a coating of RainX™ to the reflector and the face of the sensor to help keep the units clear of moisture.
  • Adjust the reflector and/or sensor for proper alignment
Beam sensor LED lights when object is detected, but there is no output.
  • Check wiring between the sensor and local alarm device.​

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