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The Automatic Garage Door Lock is a powerful add-on accessory that works automatically with the opener. 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.
*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.
California Residents: Proposition 65 WARNING