Chamberlain Liftmaster Sears Craftsman Garage Door Opener Visor Remote Control Work With Green Smart Button 850CB 856CB Compatibility 81LM REPLACEMENT REMOTE compatible with LiftMaster and Chamberlain 390Mhz billion code systems. GREEN LED LEARN LIGHT ONLY on the back of the motor. One buttonProgrammableVisor Clip 390 MHzA23 12V Battery 390 MHZ Freq, compatible with Liftmaster Sears Chamberlain Craftsman operators manufactured from 1993-1997 GREEN SMART/LEARN BUTTON TECHNOLOGY SEARS CRAFTSMAN COMPATIBLE REMOTES: 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. CRAFTSMAN OPERATORS: 53225, 53225SR, 53225SRT, 53325, 53325SRT, 53335SRT1, 53425, 53425SRT, 53479, 53491, 53525, 53525SRT, 536141SR, 536151SR, 536181SR, 536191SR, 536251SR, 536261, 536261SR, 53627, 536271SR, 53628, 53628SRT, 53629, 53629SRT, 53635, 53635SRT, 53636, 53636SRT, 53637, 53637SRT, 53638SRT, 53640, 53640SRT, 53641, 53641SRT, 53645, 53645SRT1, 53645SRT3, 53646, 53646SRT1, 53646SRT2, 53648, 53648SRT153648SRT2, 53650, 53650SRT,53660, 53660SRT, 53660SRT1, 53669, 53669SRT, 53678, 53678SRT, 53779, 53800, 53800SRT, 53824, 53824SRT, 53834, 53834SRT1, 53834SRT3, 53859, 53879, 53915SRT, 53927SRT, 53960SRT, 5397, 53970SRT, 53970, 53971, 53971SRT, 53973, 53973SRTCHAMBERLAIN/LIFTMASTER OPERATORS: ATS211 , CSO, 100SD, 215WD, 220WD, 315WD, 320WD, 710WHC, 711WHC, 1100, 1240, 1245, 1245GMR , 1245LK , 1246 , 1250 , 1255 , 1256 , 1260 , 1260LK , 1270 , 1280 , 2000SD , 2100, 3000 , 4100 , 4600 , 5100 , 7200 , 8100, 8100M CHAMBERLAIN COMPATIBLE REMOTES: 850CB, 853CB, and 856CBLIFTMASTER COMPATIBLE REMOTES: 81LM, 82LM, 83LM, and 84LM.