Sears Craftsman 139.53966SRT1 Remote is Equivalent to the ...
Equivalent to the Sears Craftsman 139 model number listed above Security Plus remote that is compatible with models manufactured from 1997- present Operates on a 390 MHZ Frequency, and has over 100 billion codes with code rotating technology A... LiftMaster Garage Door Opener Description This Liftmaster 971LM is equivalent to the Sears Craftsman 139 model number listed above. The back of your garage door opener motor should have a SMART button that lights up an Orange/Amber Color LED Light to code the remote. The corresonding wireless keypad is the 976LM wireless keypad for Security Plus 390MHz garage door openers.