The Liftmaster 41C4398A RPM Sensor is compatible with garage door openers manufactured by Liftmaster, Chamberlain, Sears Craftsman, Wayne Dalton and Master Mechanic from 1986 to current.
The Liftmaster 41C4398A RPM Sensor is compatible with 1200, 1240, 1245, 1245-266, 1246, 1250, 1250-266, 1255, 1255-166, 1255-266, 1256, 1260, 1260-166, 1260-266, 1265, 1270, 2245, 2255, 2280, 2280-267, 2280-976, 2265, 2580, 8100, 8100M, 8200, PD210, PD212, PD610, PD612, PD612K, ATS211R, ATS211, WD822K but not all models are included in this list.