LiftMaster 841LM Automatic Garage Door Lock

LiftMaster 841LM Automatic Garage Door Lock
Enhance your home security with the LiftMaster 841LM Automatic Garage Door Lock, a high-performance deadbolt system designed to work automatically with compatible LiftMaster garage door openers. This advanced lock engages and disengages in sync with your opener, offering dependable protection every time your door is used

The 841LM provides audible locking confirmation, so you always know when your garage is secure. Integrated with MyQ® smart technology, this lock lets you monitor its status from anywhere using your smartphone—ideal for homeowners who want peace of mind and remote access control.

Built for residential sectional garage doors with torsion spring systems, the lock is UL-tested and proven to resist tampering and harsh conditions. Install locks on both sides of the door for extra protection against high winds or intruders. Manual release is also available for emergencies.

Product Features:

• Model: 841LM

• Automatic deadbolt lock for garage doors

• Locks and unlocks with every garage door cycle

• Audible click confirms the lock is engaged

• Monitor and control via MyQ® App

• Enhances protection against forced entry and extreme weather

• UL-tested for safety and reliability

• One-year limited warranty

Compatibility:

The LiftMaster 841LM is compatible with select garage door openers featuring Security+ 2.0 and MyQ® technology:

• LiftMaster 8550WL

• LiftMaster 8587W

• LiftMaster 8360W

Note: For use on sectional doors with torsion spring assemblies only.

Included in the Box:

• (1) LiftMaster Automatic Garage Door Lock

• (2) Mounting Screws (1/4"-20 x 1/2")

• 33' Wire

• Installation Template