Liftmaster Dip switch systems (1984-1992)

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Product Review

Liftmaster Dip switch systems (1984-1992)

  • Equivalent to the Sears Craftsman 139 model number listed above
  • Dip switches inside the battery compartment match up with your existing remote
  • Also has a set of dip switches on the overhead opener itself if you no longer have a working remote
  • Operates on a 390 MHZ Frequency, and works on models from 1984-1992
  • 12V battery and visor clip are included along with instructions

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