2 Garage Door Remote Opener for Liftmaster 63LM (1984-1993) Dip Switch - 300-400Mhz
Brand: TCK TECH
Color: Dip
Replacement aftermarket remote compatible with the following part numbers:

Chamberlain 750CB, 753CB,740CB, 850CB, 853CB, 959CB, 856CB

Liftmaster 50LM, 53LM, 54LM, 61LM, 62LM, 63LM, 64LM, 81LM, 82LM, 83LM, 84LM, 99LM

Sears/Craftsman 139.53879, 13953859, 139.53779, 139.53759

Chamberlain Keyless entry 740CB

Liftmaster Keylss Entry 65LM, 66LM
STOP! Make sure your opener has dip switch style programming before purchasing
for openers manufactured from 1984-1993 with dip switch programming
See pictures for help locating your "programming learn button"
for 300-400mhz remotes
See description for a list of compatible part numbers