Polarized Reflective Photoelectric IR Beam Sensor, 33ft, ETL

The E-931-S33PRGQ 33ft Polarized Reflective Photoelectric Beam Sensor provides reliable detection of shiny objects that could be missed by a non-polarized sensor.

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  • Polarized sensor is immune to shiny objects: triggers only when correctly reflected light is detected
  • Weatherproof (IP55)
  • Anti-condensation housing
  • 12-30V DC/AC 60Hz, 100mA
  • Up to 33ft (10m) sensing range
  • Round reflector, Diameter: 3-1/4″ (82mm)
  • Form C relay: [email protected]/VDC
  • Beam status LED
  • Compact size: 4-13/16″x2-3/8″x2-7/16″ (122x60x62mm)
  • N.C. Tamper switch: [email protected]/VDC
  • Monitored Outputs:
    • N.C.
    • 10kΩ Resistor
  • Hood included for both sensor and reflector

Typical Applications

  • Sensor for garage doors, outdoor gates or overhead doors
  • Sensor for industrial automation to detect objects on manufacturing line
Type Polarized reflective photoelectric beam sensor
Current Draw Standby- [email protected], Active- [email protected]
Sensing Range Up to 33′ (10m)
Operating Voltage 12-30V DC/AC 60Hz, 100mA
Reaction time 10ms
IP Rating Weatherproof IP55
Light Source IR LED/Wavelength 740nm
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 [email protected]/VDC
Tamper Switch N.C., [email protected]/VDC
Operating Temperature -4º~131º F (-20º~55º C)
Enclosure IP55 Waterproof

Product Information Sheet (PI)


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

-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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