829LM Garage Door Monitor

product photo
  • Monitor and close up to four garage doors from any room in the house
  • Green and red LEDs indicate whether the garage door is open or closed
  • Volume-controlled audible alert lets you know when the garage door is being opened 
  • Fast, easy installation; no tools needed
  • Signals to any room in the home
  • Compatible only with LiftMaster® Security+2.0™ garage door openers

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product photo LiftMaster Model 8587W

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Opener Drive: Chain
Opener Horsepower: 3/4
Motor Warranty: Lifetime
Parts Warranty: 5 Years