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

Details

Brand
LiftMaster
Color
Grey
Connectivity Technology
Ethernet HDMI
Item Weight
0.1 Pounds
Product Dimensions
30"D x 8"W x

📏Compact design fits most commercial operators

📶Multi-frequency tech for interference-free range

🔒Secure access with 3-channel remote expansion

¥16772

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚪 Unlock seamless security and control — because your access should be as smart as you are.

SPACE SMART DESIGN - Compact receiver fits effortlessly on most gate and commercial door operators without bulky installation.
UNIVERSAL COMPATIBILITY - Works seamlessly with 811LM, 813LM, and all MAX remote controls for ultimate flexibility.
VEHICLE SAFE CONVENIENCE - Multiple remote options ensure secure, hands-free access from your car, enhancing safety and ease.
MASSIVE MULTI USER SUPPORT - Supports up to 90 remotes across 3 channels, perfect for gated communities and commercial sites.
INTERFERENCE FREE CONNECTIVITY - Exclusive Security+ 2.0 narrow band multi-frequency radio virtually eliminates signal dropouts and interference.

The LiftMaster 850LM is a universal gate and garage door opener receiver featuring advanced Security+ 2.0 technology with narrow band multi-frequency radio for interference-free operation. It supports up to 90 remotes across three channels, compatible with all MAX remotes including 811LM and 813LM. Its compact design fits most commercial and gated community operators, providing secure, convenient vehicle access with multiple remote control options.

Specifications

ASIN	B0071EYS9M
Aspect Ratio	16:9
Audio Output Mode	Stereo
Best Sellers Rank	#26,312 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #135 in Garage Door Keypads & Remotes
Brand	LiftMaster
Built-In Media	Internal Antenna
Color	Grey
Compatible Devices	Remote Control
Connectivity Technology	Ethernet, HDMI, USB
Customer Reviews	4.5 4.5 out of 5 stars (1,155)
Frequency Range	310 MHz, 315 MHz, 390 MHz
Global Trade Identification Number	00012381998500
Item Dimensions D x W x H	30"D x 8"W x 6"H
Item Weight	0.1 Pounds
Manufacturer	Liftmaster / Chamberlain
Mfr Part Number	850LM
Model Number	850LM
Number of Component Outputs	2
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	FCC Part 15
Supported Audio Format	Dolby Digital, DTS, AAC, MP3, PCM
Supported Standards	HDMI, MPEG, MP4, AAC, PCM
UPC	012381998500
Unit Count	1.0 Count
Voltage	12 Volts (DC)

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥16772

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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