Chamberlain Liftmaster 63LM Garage Door Remote Transmitter

3 button transmitter for Sears/Lift-master and Chamberlain openers.9 DIP switches to code, Red LED.Battery and visor clip 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.