This LiftMaster 81LM compatible mini remote made by Transmitter Solutions will work with any Chamberlain Billion Code Series Garage Door Openers that operate on the 390 Mhz frequecy. This includes Chamberlain operators made between 1993 and 1997 that have a GREEN learn button. The remote can control one garage door or gate opener.
Programming is simple just press the GREEN learn button on your opener and then press the button on the remote control and your ready to go
This unit is compatible with operators using the following LiftMaster remote controls: 81LM, 82LM, 83LM, and 84LM.
Additionally this unit is compatible with the following:
-Chamberlain 850CB, 853CB, and 856CB.
-Sears Craftsman 139.53225, 139.53225SR, 139.53225SRT, 139.53325, 139.53325SRT, 139.53335SRT1, 139.53425, 139.53425SRT, 139.53479, 139.53491, 139.53525, 139.53525SRT, 139.53525SRT1, 139.536141SR, 139.536151SR, 139.536181SR, 139.536191SR, 139.536251SR, 139.53626, 139.536261, 139.536261SR, 139.53627, 139.53627SRT, 139.536271SR, 139.53628, 139.53628SRT, 139.53629, 139.53629SRT, 139.53635. 139.53635SRT, 139.53636, 139.53636SRT, 139.53637, 139.53637SRT, 139.53638SRT, 139.5364, 139.53640SRT, 139.53641, 139.53641SRT, 139.53644SRT, 139.53645, 139.53645SRT1, 139.53645SRT3, 139.53646, 139.53646SRT1, 139.53646SRT2, 139.53648, 139.53648SRT1, 139.53648SRT2, 139.5365, 139.53650SRT, 139.5366, 139.53660SRT, 139.53660SRT1, 139.53669, 139.53669SRT, 139.53678, 139.53678SRT, 139.53755, 139.538, 139.53800SRT, 139.53824, 139.53824SRT, 139.53834, 139.53834SRT1, 139.53834SRT3, 139.53855, 139.53915SRT, 139.53927SRT, 139.53960SRT, 139.5397, 139.53970SRT, 139.53971, 139.53971SRT, 139.53973, 139.53973SRT, 139.53779, and 139.53879.
-Frequency: 390 Mhz
-Controls one garage door or automatic gate opener
-Pre-programmed to one of a billion codes
-Includes 12 volt battery, key chain clip, and programming manual.
-Dimensions: 2 by 1.5 by .5 inches
-2 year manufacturers warranty