You can program a total of 90 remotes. 50 remotes on channel 1 and 20 remotes each for channels 2 & 3.

Is this compatible with my q?

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.

Will this work on a power garage door with no remote, only interior push-buttons?

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.

Will this work with liftmaster 855lm homelink repeater? learn via yellow button on 850lm.

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.

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LiftMaster 850LM Universal Gate and Garage Door Opener Receiver

Product ID: 19522039

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Details

Brand
LiftMaster
Color
Grey
Connectivity Technology
Ethernet HDMI
Item Weight
1.6 ounces
Audio Output Mode
Stereo

📏Compact 6x5x3 inch design

📶Supports 90 remotes total

🔗3-channel multi-access

Description

🚪 Unlock effortless access—because your gate deserves smart control.

SPACE SMART DESIGN - Compact polycarbonate build fits most gates and commercial doors—sleek and unobtrusive.
CERTIFIED RELIABILITY - FCC Part 15 certified for trusted performance in gated communities and industrial sites.
SECURE VEHICLE ACCESS - Multiple remote options ensure safe, convenient entry from your car every time.
UNIVERSAL COMPATIBILITY - Works flawlessly with 811LM, 813LM, and all MAX remotes—no device left behind.
SEAMLESS MULTI CHANNEL CONTROL - Manage up to 3 channels with 90 remotes—ultimate access flexibility.

The LiftMaster850LM is a compact, universal gate and garage door opener receiver compatible with 811LM, 813LM, and all MAX remotes. It supports three channels with a total capacity of 90 remotes, providing secure, convenient access for residential and commercial applications. Built with durable polycarbonate and FCC certified, it fits most gate and commercial door operators, delivering reliable multi-remote control from your vehicle.

Specifications

Manufacturer	Liftmaster / Chamberlain
Part Number	850LM
Item Weight	1.6 ounces
Product Dimensions	6 x 5 x 3 inches
Item model number	850LM
Is Discontinued By Manufacturer	No
Color	Grey
Material	Polycarbonate
Voltage	12 Volts (DC)
Item Package Quantity	1
Certification	FCC Part 15
Included Components	Receiver, Transmitter
Batteries Included?	No
Batteries Required?	No
Battery Cell Type	Alkaline

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Excellent communication throughout the order process. Product is perfect.

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

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LiftMaster 850LM Universal Gate and Garage Door Opener Receiver

Details

Description

Specifications

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