Liftmaster 841LM Automatic Garage Door Lock

Liftmaster 841LM Automatic Garage Door Lock

Q: Is this compatible with new B1381 Chamberlain led opener?

Yes it is. I purchased the B1381 in Dec 2019 and it has the security shield symbol on the cover ( it is a shield with half light and half dark divided diagonally). It also has two lock connectors on the unit next to the up and down adjustment buttons close to where you connect the wires for the sensors and control panel and the WiFi learn button. Since it has two lock connectors if you want you can connect two of these locks, one on each side of your door.

Q: Is this compatible with Chamberlain openers?

It is compatible with at least some some Chamberlain openers. Liftmaster and Chamberlain are the same company. To know if yours is compatible the two requirements are for it to have the shield symbol on the cover and for there to be two lock connectors on the unit next to the up and down adjustment buttons. I have the Chamberlain B1381 and it is compatible.

Q: Wiil this work on the Chamberlin B970?

NO, this will not work with the B970

Q: How far does the box protrude laterally from the track? (e.g. what is the length of the plastic box with the bolt retracted?)

The box protrudes 7.200 from track. when in locked position the bolt protrudes .800 from inside surface of track

4.2/5

Product ID: 392057387

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Details

Material
Alloy Steel
Brand
LiftMaster
Color
Black
Exterior Finish
Stainless
Product Dimensions
8.5"L x 4.5"W

⚡12V power

🔒Automatic locking

🌪️Storm defense

Frequently Bought Together

Liftmaster 841LM Automatic Garage Door Lock

LIFTMASTER 8900W Light-Duty Commercial JACKSHAFT Operator W/Built-in WI-FI for SECTIONAL Doors LJ8900W

New LiftMaster 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550

Description

🔑 Secure your space, elevate your peace of mind!

PEACE OF MIND - Enhance your home security effortlessly.
WEATHER WARRIOR - Defends against high winds and storms.
SEAMLESS SECURITY - Locks automatically with every door operation.
POWERFUL PROTECTION - 12V lock ensures robust security.
COMPATIBILITY CHAMPION - Works with select Liftmaster models.

The Liftmaster 841LM Automatic Garage Door Lock is a 12V locking mechanism designed to work seamlessly with specific Liftmaster garage door openers, providing enhanced security against intruders and harsh weather conditions. Its automatic locking feature ensures your garage is always secure, making it a must-have for modern homeowners.

Specifications

Manufacturer	Liftmaster/Chamberlain
Country of Origin	USA
Item model number	841lm
Product Dimensions	21.59 x 11.43 x 10.92 cm; 1.36 kg
ASIN	B074L9JQQR

Have a Question? See What Others Asked

Is this compatible with new B1381 Chamberlain led opener?

Is this compatible with Chamberlain openers?

Wiil this work on the Chamberlin B970?

How far does the box protrude laterally from the track? (e.g. what is the length of the plastic box with the bolt retracted?)

Common Questions

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Great experience from order to delivery. Highly recommended!

1 week ago

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Fatima A.

Best international shipping I've ever tried. Worth every penny!

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Good experience, but the tracking updates could be better.

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