LiftMaster "Wired" Keyless Entry System (see model 66LM for wireless option)
Compatible with
ALL billion code systems with the red or green LED light, including Chamberlain,
Sears, Craftsman, Master-Mechanic, Wayne Dalton and Tru Value (not
compatible with Security+ code rotating see model 976LM for Security+ systems).
Compatible with Liftmaster remotes models 51LM, 52LM, 53LM, 54LM, 61LM, 62LM, 63LM, 64LM and 81LM, 82LM, 83LM, 84LM.