Marantec Garage Door Opener 89493 RPM Sensor For use with M-4500, M-4700, Q-7500, Q-7700, MacLift III. Old part number 8055529. Model # CECOMINOD023388 Features: Marantec Garage Door Opener 89493 RPM Sensor For use with M-4500, M-4700, Q-7500, Q-7700, MacLift III. Old part number 8055529.
