List of compatible opener models: Liftmaster models - 1240R, 1245R, 1246R, 1255R, 1256R, 1265, 985, 2245, 2255, 2575, 2595, 2265, 2565, 1280R, 2280, 2580, 2500, 2585, 2500B, 2500D, 1000SDR, 2000SDR, 2220, 2110, ATS211R Chamberlain models - 1200, 2200, 4200, 6200, 7220, CG40, CG40, PD210, PD610, PD612K, 7320, 8200, 9200, 4620, 4640, 9902, PD420, PD460-2, 9950 Sears Craftsman & Master Mechanic models manufactured from April 1997-2005