Automatic garage door lock 841LM

To ensure greater security for your home, LiftMaster offers an automated garage door lock that automatically locks your door when it's closed. The 841LM comes standard with the 8500W and is optional for some other models.

When it is possible to add the lock, the shield logo can be found on the casing of the opener. And when present, the shield appears on the opener in the myQ app.

Note: Here is some models that have the capacity to add up to 2 locks:

Automatic Garage Door Lock 841LMAutomatic Garage Door Lock Logo
Lock Icon

Absolute protection

A deadbolt lock makes your garage door virtually impenetrable.

Speaker Icon

Audible security

The sound of the lock engaging lets you know that you’re protected.

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Automatic operation

Performs in tandem with the opener, so it always locks and unlocks when the door opener is activated.

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Anywhere assurance

Smartphone monitoring with the MyQ® App means you always know that the garage is secure.

Ultimate Security Banner

 

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