Features: Automatic operation, performs in tandem with the opener, so it always locks and unlocks. Anywhere assurance, smartphone monitoring with the myq app means homeowners always know that the garage is securesafety and security: Absolute protection, the automatic deadbolt lock makes the garage door virtually impenetrable audible security, the sound of the lock engages providing homeowners with assurance that the door is closed and secure. Compatibility: Works with three new select lift master auto lock capable garage door openers 8550w dc battery backup belt drive wi fi 8587w ¾ hp ac chain drive wi fi 8360w dc battery backup capable chain drive wi fi.