Garage Door Deadbolts When Closed
To maximize home security, LiftMaster’s 8500W residential garage door opener comes standard with an automatic garage door lock, a deadbolt that makes the garage door virtually impenetrable by automatically engaging every time the door closes. It also features Alert-to-Close, which signals when a door is being closed by the MyQ app or the Timer-to-Close feature with audible and visual warnings occurring for 10 seconds before the door begins its downward travel. Its integrated battery backup powers the opener until electricity is restored.
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