IRB-RET2 RetroReflective Photoeye

Universal UL325 Retroreflective Photoeye Kit

  • Universal UL325 Retroreflective Photoeye Kit
  • Compact design
  • Easy LED alignment
  • Easy-to-Adjust Ball & Socket Bracket
  • Rugged NEMA 4X enclosure
  • Integrated sensor hood, improved reflector hood, and ball & socket bracket
  • Selectable Stealth Mode for security
  • 1/2 inch conduit connection
  • 60 ft. operating range
  • Six monitoring interfaces
  • Effortless installation and setup




Introducing the all-new IRB-RET2 Retro-Reflective Photoeye from EMX Industries – the latest innovation in access control. This weather-proof photoeye solution delivers advanced entrapment protection for automatic gates and doors.

The sleek and compact design of this photoeye, coupled with an easy alignment LED, simplifies your installation process. Its rugged NEMA 4X enclosure makes it perfect for both indoor and outdoor use, while its compliance with UL325-2018 ensures both safety and performance.

The IRB-RET2 utilizes a universal design that seamlessly integrates with a wide variety of monitored operators and non-monitored legacy products, making it incredibly versatile. And with the included ball and socket bracket, you can mount and align your photoeye with ease.

For added security and deterrence against vandalism, the IRB-RET2 features a Selectable Stealth Mode. This discreet feature turns your sensors LEDs OFF after 30 seconds of no obstructions for a discrete installation.

Investing in the Retro-Reflective Photoeye means enhanced security, increased functionality, and peace of mind for automatic gates and doors. Discover the benefits for yourself and upgrade to the latest from EMX Industries now.


Features of the IRB-RET2 Photoeye

  • Type B1, non-contact sensor
  • UL 325-2018 compliant
  • Operating range up to 60 ft. (18.3 m)
  • NEMA 4X enclosure
  • Sensitivity adjustment: potentiometer
  • Easy Alignment LED
  • Integrated Sensor Hood
  • Ball and Socket Mounting Bracket
  • Selectable Stealth Mode
The IRB-RET2 universal UL325 retroreflective photoeye has 6 monitoring interfaces:

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


IRB-RET2 RetroReflective Photoeye Specs

Operating range 5 ft (1.5 m) to 60 ft (18.3 m)
Sensitivity adjustment Potentiometer
Power 6-40 VDC, 12-24 VAC
Current (NC and 10K Monitoring Methods) 50 mA DC (relay activated)
Current (Pulse Monitoring Methods) 15 mA DC
Resistive Termination 10K ohm across NO contact (switch selectable)
Surge Protection Thermal fuse, MOV
Relay Output Operation Light ON/Dark ON
Response Time 250ms
Operating Temperature -30° to 140°F (-34° to 60°C)
Environmental NEMA 4X
Dimensions (L x W x H) 5.1” (130 mm) x 3.15” (80 mm) x 5.5” (140 mm)
Weight 0.7 lbs.
Ball Joint Mount Conduit Thread ½ Inch NPT

This universal UL325 retroreflective photoeye kit includes:

Easily mount on flat or curved surfaces

White plastic reflector
3″ diameter

Black plastic protective hood for reflector

for alternate reflector mounting

Spec Sheet


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