Sears Craftsman LiftMaster Chamberlain
Security+ Universal Garage Door Opener
Plug-In Receiver  
LiftMaster 635LM Security+ Universal Garage Door Opener Receiver
Security+ technology, replaces pre-1983 receivers with discontinued transmitters
Easy to install, simply use your existing wall buttons' wires and plug into a wall outlet, that's it!
The code between the remote and receiver changes with each use
Over 100 billion possible codes using Security+ remotes, however, this item will accept ALL older remotes as well
Accepts multiple remote controls utilizing up to 8 functions, and one Security+ keyless entry
Will work with Lift-Master, Sears, Craftsman or Chamberlain remotes
PROGRAMMING INSTRUCTIONS
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