Original factory replacement part. Color: Black, 3 volt lithium battery, part #971LM Works with all Liftmaster, Sears and Chamberlain garage door openers, utilizing the 390 Mhz frquency. Opener models 1240R, 1245R, 1246R, 1255R, 1256R, 1265R, 2245, 2255, 2265, 2280, 2575, 2595, 2580, 2585, 2110, 2220, 1000SDR, 2000SDR. Circuit board rear panel numbers 41A5021-3, 41A5021-1, 41A5021-2, 41D4674-10, 41D4674-11, 41A5483-2, 41A5483, 41A5389-1 (Don not woory about the leter following your circuit board number it is used as a revision tool for inventory purposes) Sears numbers on rear or side panel 139.53661, 139.53661SRT, 139.53661SRT3, 139.53662, 139.53662SRT, 139.53662SRT2, 139.53663, 139.53663SRT, 139.53664, 139.53664SRT, 139.53664SRT2, 13953670, 139.53670SRT1, 139.53671, 139.53671SRT, 139.53671SRT3, 139.53672, 139.53672SRT, 139.53672SRT2, 139.53672SRT3, 139.53673, 139.53673SRT, 139.53673SRT3, 139.53674, 139.53674SRT1, 139.53674SRT2, 139.53675, 139.53675SRT1, 139.53675SRT2, 139.53677, 139.53677SRT, 139.53677SRT3, 13953910, 139.53914, 139.53954, 139.53961, 139.53961SRT, 139.53962, 139.53962SRT, 139.53962SRT1, 139.53963, 139.53963SRT, 139.53964, 139.53964SRT, 139.53966, 139.53966SRT, 139.53966SRT1, 139.53974, 139.53974SRT, 139.53975, 139.53975SRT, 139.539SRT1, 139.53976, 139.53976SRT, 139.53978, 139.53978SRT, 139.53978SRT1, 139.53982SRT, 139.53985, 139.53991, 139.53991SRT, 953CB, 956CB, 139.53680, 139.53681If your garage door opener was manufactured between 1997 and 2005 and has a red or orange learn code buton this transmitter will be compatible. 390MHZ, Security Plus.Remote Control Transmitter, 3 volt lithium battery, visor clip, programming instructions, manufacturers original packaging, Manufactuers 1-year Warranty
