---
product_id: 355980974
title: "850LM Universal Gate and Garage Door Opener Receiver"
brand: "liftmaster"
price: "$U9864"
currency: UYU
in_stock: true
reviews_count: 5
url: https://www.desertcart.uy/products/355980974-850lm-universal-gate-and-garage-door-opener-receiver
store_origin: UY
region: Uruguay
---

# Multi-frequency radio tech Expandable 3-channel remote capacity Rolling code security 850LM Universal Gate and Garage Door Opener Receiver

**Brand:** liftmaster
**Price:** $U9864
**Availability:** ✅ In Stock

## Summary

> 🔐 Secure your space with the future-proof LiftMaster 850LM — access redefined.

## Quick Answers

- **What is this?** 850LM Universal Gate and Garage Door Opener Receiver by liftmaster
- **How much does it cost?** $U9864 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/355980974-850lm-universal-gate-and-garage-door-opener-receiver)

## 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

- • **Next-Level Security:** Rolling code encryption protects your property from hacking and unauthorized access.
- • **Universal Compatibility:** Works seamlessly with all MAX remotes including 811LM and 813LM for ultimate convenience.
- • **Interference-Free Access:** Security+ 2.0 tech virtually eliminates radio interference for flawless entry every time.
- • **Massive Multi-User Support:** Supports up to 90 remotes across 3 channels—perfect for gated communities and commercial sites.
- • **Compact & Flexible Installation:** Sleek design fits most operators; antenna can be repositioned with coaxial cable for optimal range.

## Overview

The LiftMaster 850LM is a universal gate and garage door opener receiver featuring advanced Security+ 2.0 rolling code technology that virtually eliminates radio interference and hacking risks. It supports up to 90 remotes across three channels, fits most gate and commercial door operators, and offers flexible antenna placement for optimal signal range. Compatible with all MAX remotes, it’s the smart, secure upgrade for gated communities and commercial facilities.

## Description

Designed for both gated communities and commercial buildings, the new Universal Receiver and accompanying remote controls feature Security+ 2.0? technology. It utilizes a new, innovative and esclusive narrow band multi-frequency radio, which virtually eliminates radio interference, and eliminates customer call backs due to poor range performance.

Review: works perfectly - worked exactly as expected replacing old unit
Review: Security Upgrade for Dip Switch Garage Door Opener - My garage door opener used dip switches to set a security code that matches the code that was set on the remote controls. A long time ago when they were originally sold, that was okay because the likelihood of interception was low and computers were too slow to accomplish a "brute force" password attack (trying every possible number combination until it finds one that works) in a reasonable amount of time. Now computers are fast enough that a handheld computer (like a cellphone, Raspberry Pi, etc) with the proper radio transmitter could force a dip switch door to open in a few minutes. Which means that dip switch garage openers are not secure at all. The solution is "rolling code." More complex passwords that periodically change automatically, and the remotes stay individually linked to the opener even while the password is changing. The 850LM is a rolling code radio receiver meant to replace your door/gate opener's original radio receiver. Physical installation of the 850LM is reasonably easy. I used the included velcro strips to set the receiver (it's about the size of a hamburger) on top of the opener and connected a wire (not included) between the receiver and the door opener's wall button terminals. I tried to use another wire to draw power from the door opener, but I couldn't get that to work so I used a Radio Shack selectable voltage power supply instead. Liftmaster sells a power supply that fits the 850LM. But the receiver accepts anywhere between 9v and 30v AC or DC for power, so you have a lot of options (as long as the plug fits) if you need a power supply and don't want to buy one from LM. The instructions said that cutting off the dangling wire antenna would disable the garage door opener's old radio receiver, but that didn't work at all. I cut the old antenna off, then tested the old remotes, and they still worked! Which I definitely did not want since I was trying to replace the old receiver with a new more secure one. Ultimately I had to take the cover off of the rear (motor) side of the garage opener and unplug the old dip switch radio receiver (a small circuit board) from the motor to completely deactivate it. That shut down the old insecure dip switch system for good and the old remotes no longer worked (which was my goal). The nice thing about the 850LM's antenna is that it attaches to the receiver with the exact same type of screw-on plug that's used for cable TV. Which means that you can also use a coaxial TV cable (along with a small coaxial extension adapter) to place the antenna wherever you want. I was worried that I might get bad reception with the new antenna placed directly on the receiver and the garage opener, so I used a coaxial cable to place the antenna further away from the motor, closer to the driveway, and higher up. I have not used the 850LM enough to say whether the reception distance is any better or worse than the old dip switch receiver, but so far it does work reliably with a new set of compatible remotes and I haven't had any instances where it completely failed to detect the button presses of my remotes (which was a problem that happened intermittently with the old dip switch receiver even when I was right outside of the door).

## Features

- Compatible with 811LM, 813LM, and all MAX remote controls
- Expands to three channels: Channel 1 - 50 remotes, Channel 2 - 20 remotes, Channel 3 - 20 remotes
- Compact design fits most gate and commercial door operators
- Provides convenient access to gated communities, industrial facilities, and commercial sites all with a single transmitter solution
- Multiple remote control options available to provide secure access from the safety and convenience of a vehicle

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0071EYS9M |
| Antenna Location | operating and providing access to gates and garage doors |
| Aspect Ratio | 16:9 |
| Audio Output Mode | Stereo |
| Audio output mode | Stereo |
| Best Sellers Rank | 366,078 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,293 in Gate Hardware |
| Box Contents | Remote, Wally Receiver |
| Brand | LiftMaster |
| Brand Name | LiftMaster |
| Colour | Grey |
| Compatible Devices | Television |
| Connectivity technology | Ethernet, HDMI, USB |
| Customer Reviews | 4.5 out of 5 stars 1,069 Reviews |
| Frequency Range | 310 MHz, 315 MHz, 390 MHz |
| Global Trade Identification Number | 00012381998500 |
| Item Dimensions D x W x H | 76.2D x 20.3W x 15.2H centimetres |
| Item Weight | 45 g |
| Item weight | 45 g |
| Manufacturer | LiftMaster |
| Model Number | 850LM |
| Network Connectivity Technology | Ethernet, HDMI, USB |
| Product dimensions | 76.2D x 20.3W x 15.2H centimetres |
| Specification Met | FCC Part 15 |
| Supported Audio Format | Dolby Digital, DTS, AAC, MP3, PCM |
| Supported Standards | HDMI, MPEG, MP4, AAC, PCM |
| Total Video Out Ports | 2 |
| UPC | 012381998500 |
| Unit Count | 1.0 Count |
| Video Output Resolution | 1080p pixels |
| Voltage | 12 Volts (DC) |

## Product Details

- **Brand:** LiftMaster
- **Colour:** Grey
- **Connectivity technology:** Ethernet, HDMI, USB
- **Item weight:** 45 g
- **Product dimensions:** 76.2D x 20.3W x 15.2H centimetres

## Images

![850LM Universal Gate and Garage Door Opener Receiver - Image 1](https://m.media-amazon.com/images/I/81RbB-RrvgL.jpg)

## Questions & Answers

**Q: FOR MANY REMOTES IS?**
A: You can program a total of 90 remotes. 50 remotes on channel 1 and 20 remotes each for channels 2 & 3.

**Q: Is this compatible with my q?**
A: It USED to be compatible with MyQ. I had it configured for the last two years, working fine, and hooked up to Amazon Key for garage deliveries. Today, for unrelated security reasons, we had to reset all the remote codes on the 850LM and re-add them. Now the MyQ app will NO LONGER allow you to pair with the 850LM. It is not a technical limitation, it is a product marketing decision. I suspect they want to force people to shell out hundreds of dollars to upgrade their whole garage door system if they want internet access. It's a very lame decision by liftmaster to break something that was ALREADY WORKING.

**Q: Will this work on a power garage door with no remote, only interior push-buttons?**
A: It's basically a set of buttons that can be remotely activated.  Supports up to 3 buttons to control up to three 1-button openers or one 3-button opener.  Supports both NC and NO type on channel 3 for stop buttons.  Remote not included, just get a new liftmaster 3 button and it will work.  I went with a 4-button remote, I control the 3 channels of this receiver for my shed and the 1 button opener on my attached garage with 1 remote.

**Q: Will this work with liftmaster 855lm homelink repeater? learn via yellow button on 850lm.**
A: Yes it will, I just did it.  You may have to press the Homelink button in your car a few times before the 850LM learns it. That's what I had to do.

## Customer Reviews

### ⭐⭐⭐⭐⭐ works perfectly
*by S***E on 4 February 2025*

worked exactly as expected replacing old unit

### ⭐⭐⭐⭐⭐ Security Upgrade for Dip Switch Garage Door Opener
*by T***Y on 21 October 2025*

My garage door opener used dip switches to set a security code that matches the code that was set on the remote controls. A long time ago when they were originally sold, that was okay because the likelihood of interception was low and computers were too slow to accomplish a "brute force" password attack (trying every possible number combination until it finds one that works) in a reasonable amount of time. Now computers are fast enough that a handheld computer (like a cellphone, Raspberry Pi, etc) with the proper radio transmitter could force a dip switch door to open in a few minutes. Which means that dip switch garage openers are not secure at all. The solution is "rolling code." More complex passwords that periodically change automatically, and the remotes stay individually linked to the opener even while the password is changing. The 850LM is a rolling code radio receiver meant to replace your door/gate opener's original radio receiver. Physical installation of the 850LM is reasonably easy. I used the included velcro strips to set the receiver (it's about the size of a hamburger) on top of the opener and connected a wire (not included) between the receiver and the door opener's wall button terminals. I tried to use another wire to draw power from the door opener, but I couldn't get that to work so I used a Radio Shack selectable voltage power supply instead. Liftmaster sells a power supply that fits the 850LM. But the receiver accepts anywhere between 9v and 30v AC or DC for power, so you have a lot of options (as long as the plug fits) if you need a power supply and don't want to buy one from LM. The instructions said that cutting off the dangling wire antenna would disable the garage door opener's old radio receiver, but that didn't work at all. I cut the old antenna off, then tested the old remotes, and they still worked! Which I definitely did not want since I was trying to replace the old receiver with a new more secure one. Ultimately I had to take the cover off of the rear (motor) side of the garage opener and unplug the old dip switch radio receiver (a small circuit board) from the motor to completely deactivate it. That shut down the old insecure dip switch system for good and the old remotes no longer worked (which was my goal). The nice thing about the 850LM's antenna is that it attaches to the receiver with the exact same type of screw-on plug that's used for cable TV. Which means that you can also use a coaxial TV cable (along with a small coaxial extension adapter) to place the antenna wherever you want. I was worried that I might get bad reception with the new antenna placed directly on the receiver and the garage opener, so I used a coaxial cable to place the antenna further away from the motor, closer to the driveway, and higher up. I have not used the 850LM enough to say whether the reception distance is any better or worse than the old dip switch receiver, but so far it does work reliably with a new set of compatible remotes and I haven't had any instances where it completely failed to detect the button presses of my remotes (which was a problem that happened intermittently with the old dip switch receiver even when I was right outside of the door).

### ⭐⭐⭐⭐⭐ excelente calidad
*by A***O on 8 July 2024*

Recibe muy bien la señal y da muy buen servicio

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-03-06*