LiftMaster LMRRUL Monitored Retro Reflective Safety Eye

The LiftMaster LMRRUL Monitored Retro-Reflective Photoelectric Sensor is a high-performance safety device designed to provide reliable non-contact entrapment protection for compatible UL-listed LiftMaster gate operators. Featuring a detection range of up to 50 feet, this monitored photoelectric sensor helps prevent gate movement when an obstruction is detected, enhancing both safety and UL 325 compliance.

Engineered for demanding outdoor environments, the LMRRUL features a rugged NEMA 4X-rated weatherproof design and an integrated heater that allows dependable operation in temperatures as low as -40°F. Its retro-reflective design requires power on only one side of the installation, simplifying setup while maintaining reliable detection performance.

Key Features

• Model Number: LMRRUL
• Type: Monitored retro-reflective photoelectric sensor
• Application: Non-contact entrapment protection for automatic gate systems
• Detection Range: Up to 50 feet
• Compatibility: UL-listed LiftMaster gate operators
• Alignment Indicator: Built-in signal strength indicator for simplified installation and adjustment
• Weather Rating: NEMA 4X for outdoor use
• Safety Compliance: UL 325 compliant
• Operating Temperature: Down to -40°F with integrated heater
• Power Requirement: Only one side of the system requires power

What's Included

• LiftMaster LMRRUL photoelectric sensor
• 10-foot connection wire
• Mounting brackets and hardware
• Steel sensor hood
• Polyethylene reflector hood

Power & Installation Specifications

• Heater Power Requirements: 2W maximum
• Heater Input Voltage: 10–40VDC or 8–28VAC
• Sensor Dimensions (with hood): 2.61" W × 4.72" H × 2" D
• Installation Type: Retro-reflective design with powered sensor and reflector
• Recommended Use: Hardwired commercial and residential gate systems
• Not Recommended For: Solar-powered gate operators due to heater power requirements

Benefits

• Provides reliable monitored entrapment protection
• Supports UL 325 safety compliance requirements
• Offers long-range obstacle detection up to 50 feet
• Simplifies installation with single-sided power requirements
• Performs reliably in harsh weather and extreme temperatures
• Built-in alignment indicator reduces installation time and maintenance

Common Applications

• Commercial slide gate operators
• Commercial swing gate operators
• Industrial access control systems
• Apartment and condominium gate entrances
• Gated communities
• Warehouse and distribution facility gates
• Secure commercial properties

Important Compatibility Note

Always consult your gate operator owner's manual or installation guide to verify compatibility before purchasing. Proper safety device selection is essential for maintaining UL 325 compliance and ensuring safe gate operation.