---
product_id: 105575685
title: "LMRRUL Retro-Reflective Photo Eye"
brand: "liftmaster"
price: "$563.55"
currency: USD
in_stock: true
reviews_count: 8
category: "Lift Master"
url: https://www.desertcart.ec/products/105575685-lmrrul-retro-reflective-photo-eye
store_origin: EC
region: Ecuador
---

# 50 ft sensing range Built-in heater for all-weather Smart alignment indicator LMRRUL Retro-Reflective Photo Eye

**Brand:** liftmaster
**Price:** $563.55
**Availability:** ✅ In Stock

## Summary

> 🚪 Secure your space with precision and style — never miss a beat!

## Quick Answers

- **What is this?** LMRRUL Retro-Reflective Photo Eye by liftmaster
- **How much does it cost?** $563.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/105575685-lmrrul-retro-reflective-photo-eye)

## Best For

- liftmaster enthusiasts

## Why This Product

- Trusted liftmaster brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Alignment:** Smart LED indicators guide you to perfect sensor positioning every time.
- • **Long-Range Precision:** Detects up to 50 feet for ultimate gate safety and control.
- • **Durable & Weatherproof:** NEMA 4X rated with stainless steel and polycarbonate for harsh environments.
- • **All-Weather Reliability:** Built-in heater ensures flawless performance from -40°F to 149°F.
- • **Plug & Play Installation:** Requires power on only one side with included brackets, wiring, and hardware.

## Overview

The LiftMaster LMRRUL Retro-Reflective Photo Eye is a high-accuracy, long-range gate safety sensor designed for professional-grade security. Featuring a 50-foot sensing distance, built-in heater for extreme weather resilience, and smart alignment indicators, it ensures reliable, hassle-free installation and operation. Built tough with NEMA 4X weatherproof rating and UL 325 safety compliance, it’s the go-to choice for modern gate safety monitoring.

## Description

LMRRUL features integrated diagnostics with our 2018 UL 325 Gate Operators. Reliable Versatile Solution for entrapment protection. Long-Range Sensing Distance of up to 50 ft. (LMRRUL) Built-In Heater for dependable performance in most environments. Increased Beam Angle for simple, reliable alignment. Versatile Gimble Bracket for fine alignment and adjustability. Warranty 2 years. Smart Alignment Strength Indicator signals optimal beam alignment. Multi-View Led Lights indicate sensor status, simplifying installation. Safe and Secure Secure Mounting Hardware for versatile performance in harsh applications. Hoods Included for durability and shield from elements. NEMA 4X Rated for superior weather resistance. UL Recognized: tested and evaluated by UL and meet UL 325 requirements. Quality Grade Design Cover: Stainless-steel sensor hood Durable polycarbonate reflector hood Powder-coated galvanized mounting brackets Weight LMRRUL: 3.3 lbs. Dimensions Photo Eye with Hood* Height: 4.6” Width: 2.45” Depth: 2.76” Dimensions Photo Eye without Hood Height: 4.56” Width: 2.35” Depth: 1.97” Dimensions Reflector with Hood Height: 4.72” Width: 2.01” Depth: 2.61” Temperature Specifications -40°F (-40°C) to 149°F (65°C) Diagnostics LMRRUL Solid Blue—optimal alignment Blinking Blue—LED blinks faster to indicate near alignment Solid Red—misaligned or obstructed Standard Features Input Voltage and Current Draw Sensor: Black/Red Wires: 6.8V DC, 20mA Heater: Green/White Wires: 10–40V DC or 8–28V AC, 2 Watts Max., 170mA at 120V DC/AC, 85mA at 24V DC/AC Monitoring Technology: pulsed system Interface: 4-Wire connection (2 for Eye; 2 for heater) Sensor Compatibility: LMRRUL emitter is not interchangeable with LMTBUL emitter Includes: brackets, hardware and 10ft. wire and hoods

Review: Worked like a champ! - Quick and easy installation.
Review: Perfect replacement - This photo sensor is perfect for your gate safety circuit.

## Features

- Long Range Sensing distance up to 50 ft.
- Built-In Heater for dependable performance in most environments.
- Alignment strength indicator signals optimal beam alignment. Requires power only on one side of the installation.
- Reflector hood, 10 ft. wire, brackets and mounting hardware included. NEMA 4X rated for superior weather resistance.
- Meets UL 325 Safety Standards.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MQP2P4P |
| Best Sellers Rank | #126,040 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #115 in Garage Door Opener System Parts |
| Brand | LiftMaster |
| Current Rating | 20 Milliamps |
| Date First Available | January 13, 2019 |
| Item Weight | 2.71 pounds |
| Item dimensions L x W x H | 9.29 x 8.5 x 3.23 inches |
| Item model number | LMRRUL |
| Manufacturer | Chamberlain |
| Material | Polycarbonate, Stainless Steel |
| Maximum Supply Voltage | 6.8 Volts |
| Measurement Accuracy | High Accuracy |
| Mounting Type | Flange Mount |
| Output Type | Digital |
| Product Dimensions | 9.29 x 8.5 x 3.23 inches |
| Sensing Distance | 50 Feet |
| Specific Uses For Product | Gate safety monitoring |
| Style | Modern, Sleek |
| UPC | 012381191284 |
| Upper Temperature Rating | 149 Degrees Fahrenheit |

## Product Details

- **Brand:** LiftMaster
- **Item Weight:** 2.7 Pounds
- **Item dimensions L x W x H:** 9.29 x 8.5 x 3.23 inches
- **Material:** Polycarbonate, Stainless Steel
- **Style:** Modern, Sleek

## Images

![LMRRUL Retro-Reflective Photo Eye - Image 1](https://m.media-amazon.com/images/I/41yUYjA47aL.jpg)

## Questions & Answers

**Q: will this work with liftmaster model SL585101U ?**
A: Yes it will.

**Q: Does it come with phot eye covers and reflect covers or weather protection shielding and mounting hardware?**
A: Steel sensor hood and durable polyethylene reflector hood, 10 ft. wire, brackets and mounting hardware included.

**Q: Is there a way to keep the reflector from collecting few?   The heater is great on one side but the reflector causes a failure every morning.   I have**
A: Mine does exact same thing when we have a heavy frost.  I made a extended hood that goes around reflector . It helps 98% of the time . I plan on creating some type of heat strip eventually. You would think it would have a better design.

**Q: Can one sensor protect both the open and close motion, or are two sensors required?**
A: You will need a sensor on each side of the gate..  one for “open” and one for “closed”.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked like a champ!
*by W***E on August 22, 2025*

Quick and easy installation.

### ⭐⭐⭐⭐⭐ Perfect replacement
*by J***L on April 19, 2025*

This photo sensor is perfect for your gate safety circuit.

### ⭐⭐⭐⭐⭐ EPOTX
*by E***Y on May 4, 2025*

Worked great with gate

## Frequently Bought Together

- LiftMaster LMRRUL Retro-Reflective Photo Eye
- Liftmaster KPW5 wireless keypad 5 code Security+ 2.0

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-14*