EMX Industries IRB-MON2 Thru Beam Photo Eye
The IRB-MON2 is a durable, UL325-compliant thru-beam photoeye designed to provide reliable entrapment protection for gates, doors, and barriers. Its weatherproof design and flexible monitoring options make it compatible with both modern and legacy operator systems.
IRB-MON2 Monitored Thru-Beam Photoeye
The IRB-MON2 is a monitored, weatherproof thru-beam infrared photoeye designed to provide reliable entrapment protection for gates, doors, and barrier systems. UL 325 compliant and housed in an IP65-rated enclosure, it is suitable for both indoor and outdoor installations.
This universal photoeye is compatible with a wide range of monitored operators and can also be used with many non-monitored legacy systems. Its durable construction minimizes fogging and false triggering while allowing for easy alignment and dependable performance.
Key Features
- Enhanced version of the original IRB-MON with improved performance
- Compact design with integrated sensor hood for weather protection
- Compatible with monitored and non-monitored gate operators
- Removable terminal block for quick and easy wiring
- Supports multiple UL 325 monitoring methods for flexibility
- Durable housing reduces fogging and false triggers
- Large 0.83" conduit hole fits 1/2" NPT connections
- Operating range up to 115 ft
Monitoring Interfaces
- Normally Closed (NC)
- Two-wire pulsed (2 frequency)
- Two-wire pulsed (3 frequency)
- 10K resistive termination
Technical Specifications
- Operating Range: 5 to 115 ft (35 m)
- Power: 6–35 VDC, 12–24 VAC
- Current (NC / 10K): 35 mA DC (aligned and relay activated)
- Current (Pulse Methods): 15 mA
- Relay Output: Form C contacts (NO, COM, NC)
- Response Time: <300 ms
- Operating Temperature: -40°F to 170°F (-40°C to 77°C)
- Connections: Removable screw terminal block
Dimensions
- Size (L x W x H): 3.6" x 2.9" x 2.9"
- Conduit Hole: 0.83" (fits 1/2" NPT)
Wiring Instructions
Follow the table below to determine the correct wiring diagram for your gate operator. Refer to your EMX product manual for detailed diagrams, including required wiring configurations and DIP switch settings. Always verify the correct connection type and monitoring method with your gate operator manual.
Updated as of 3/4/2025
| Gate Operator | EMX Diagram |
|---|---|
| Apollo / Nice | B |
| All-O-Matic | A |
| Autogate | B |
| DoorKing | B |
| FAAC | A |
| Hy-Security | A |
| LiftMaster | B |
| Linear (Apex) | B |
| Max Controls | A or B |
| PowerMaster | C* |
| US Automatic | B |
| Viking | B |
Caution: Using two-wire pulse incorrectly can damage your device. Always confirm compatibility and wiring method with your gate operator manual before installation.
Non-Monitored Setup
For non-monitored applications, follow Diagram A, but connect the wiring to the NO (Normally Open) terminal instead of NC (Normally Closed).
The IRB-MON2 delivers dependable, versatile safety performance, making it an excellent choice for both new installations and retrofits requiring UL 325 compliant entrapment protection.