The Liftmaster model 81LM remote operates on the 390 MHz frequency. This remote comes with a long life 5 year 3 volt battery and a clip that attaches to your car visor.
Compatibility:For use with openers with a green learn button
Chamberlain: 850CB, 853CB, 856CB
Sears Craftsman: 139.53707, 139.53870, 139.53779, 139.53879, 139.53800, 139.53637SRT, 139.53225 139.53645 139.53225SR 139.53645SRT1 139.53225SRT 139.53645SRT3 139.53325 139.53646 139.53325SRT 139.53646SRT1 139.53335SRT1 139.53646SRT2 139.53425 139.53648 139.53425SRT 139.53648SRT1 139.53479 139.53648SRT2 139.53491 139.5365 139.53525 139.53650SRT 139.53525SRT 139.5366 139.536141SR 139.53660SRT 139.536151SR 139.53660SRT1 139.536181SR 139.53669 139.536191SR 139.53669SRT 139.536251SR 139.53678 139.53626 139.53678SRT 139.536261SR 139.53779 139.53627 139.53800 139.536271SR 139.53800SRT 139.53628 139.53824 139.53628SRT 139.53824SRT 139.53629 139.53834 139.53629SRT 139.53834SRT1 139.53635 139.53834SRT3 139.53635SRT 139.53879 139.53636 139.53915SRT 139.53636SRT 139.53927SRT 139.53637 139.53960SRT 139.53637SRT 139.53970 139.53638SRT 139.53970SRT 139.53640 139.53971 139.53640SRT 139.53971SRT 139.53641 139.53973 139.53641SRT 139.53973SRT
Liftmaster: ALL openers with a green learn button; 82LM, 83LM, 66LM, 81LMC, 82LMC, 83LMC
Liftmaster Logic Board: 41A4315-7B, 41A4201-7C, 41A4201-7C, 41A4201-7C, 41A4252-7D, 41D4674-3C, 41D4674-1C, 41D4374-9C, 41D4674-1C, 41A4315-6B, 41A4252-6, 41A4207-1
Link: ALL openers with a green learn button; 81LNK
A Guide To Compatablility Finding the correct compatible remote can be confusing. The manufacturer of the Liftmaster 81LM (Chamberlain) also manufacters the same compatible remote under different brand names such as Sears Craftsman. Above is the list of remotes that are compatible with the Liftmaster 81LM. If you have a Sears Craftsman remote, you will find your model number on the logic board (circuit board) on the back of your garage door motor. The model number will follow "139.".
Quick Guide to Programming the Liftmaster 81LM
For more detailed instructions, please see the above instruction manual.
To Erase All Codes From Motor MemoryTo deactivate any unwanted remote, first erase all codes: Press and hold the “learn” button on motor unit until the learn indicator light goes out (approximately 6 seconds). All previous codes are now erased. Reprogram each remote that you wish to use.
Technical Specifications of the 81LMModel #: 81LM
Canada Model #: 81LMC
FCC ID: HBW1A5260
IC: 2666A 1021380