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Linear / Osco 620-101287 Refelctive Photo Eye w/ Hood IRB-RET

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Linear / Osco 620-101287 Refelctive Photo Eye w/ Hood IRB-RET

Linear / Osco 620-101287 Refelctive Photo Eye w/ Hood IRB-RET


The IRB-RET is a monitored, weather-proof retroreflective photoeye solution providing entrapment protection for automatic gates and doors. Retroreflective configuration eliminates the need for a separate transmitter and the associated wiring across a roadway to reduce installation costs. The IRB-RET is UL 325-2016 compliant and housed in a rugged NEMA 4X enclosure suitable for indoor and outdoor use.

The universal design of the IRB-RET allows it to be used with a wide variety of monitored operators. Additionally, it is compatible with most non-monitored legacy products.

The IRB-RET has 5 monitoring interfaces:

  • Normally closed
  • Two-wire pulsed (2 freq)
  • Two-wire pulsed (3 freq)
  • Four-wire pulsed
  • 10k resistive termination

The long range and retroreflective features provide a flexible solution to all external entrapment protection needs.


  • Selectable monitoring interface for easy set-up and installation
  • Compatible with many operators
  • Long operating range
  • Robust design minimizes fogging and false triggering to provide easy alignment
  • Mounting bracket and reflector provided


  • Type B1, non-contact sensor
  • UL 325-2016 compliant
  • Operating range up to 60 ft. (18.3 m)
  • NEMA 4X enclosure
  • Sensitivity adjustment: potentiometer

Additional Information

SKU 620-101287
Manufacturer Nortek / Linear LLC / Linear PRO Access / OSCO GATE
Condition New
Photo Eye Type Reflective
Monitored/Non-Monitored Monitored