Liftmaster 63LM 9 Dip Switch Garage Door Remote
The 63LM 3 button transmitter for Sears/Lift-master and Chamberlain openers. 9 DIP switches to code in Chamberlain unit. Lift-master compatible models: 51LM, 53LM, 54LM, 61LM, 62LM, 64LM. Chamberlain compatible models: 750CB, 753CB, 756CB. Sears compatible models: 139.53707, 139.53758, 139.53778, 139.53515, 139.53606, 139.65843. Not all models listed.