829LM Garage Door Monitor


photo of black garage door monitor with button to close door and two status lights


Garage door monitor lets you check and close the garage door from any room in the house.



Request a Free Estimate

  • 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
  • A 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