The 41C4398A RPM sensor is for all Chamberlain and LiftMaster Group chain and belt drive openers manufactured from 1984 to the present.
- For use with all Chamberlain and Liftmaster Group chain and belt drive openers
- For units manufactured from 1984 to the present
- For use with all Chamberlain and Liftmaster Group chain and belt drive openers
- For units manufactured from 1984 to the present