841LM

Automatic Garage Door Lock

• Powerful add-on accessory works automatically with the opener.
• Deadbolt lock reinforces the garage door automatically when the garage door is closed.
• Performs in tandem with the opener, so it always locks and unlocks.

FEATURES

Safety and Security

Automatically Lock

Powered by myQ technology, homeowners can open and close their garage door from anywhere* and receive alerts if its left open.

The sound of the lock engaging provides homeowners with the assurance the garage door has been secured.

When two locks are installed, the two-point locking system has been engineered, tested and approved to meet hurricane-ready requirements** by reinforcing the garage door automatically. 

COMPATIBILITY

The Automatic Garage Door Lock 841LM is available and sold separately for LiftMaster Garage Door Opener models: WLED, 8550WLB, 8360WLB, 8580WLB and 8587WL. The Automatic Lock is included in 8500W.

*Cellular data or Wi-Fi connection required. Test equipment regularly and follow safety instructions.

**If your garage door requires a center post to be installed during a wind event, the LiftMaster Automatic Garage Door Lock cannot be used to replace that system. Please contact your local LiftMaster installer or garage door manufacturer.

Installation Manual