A transducer assembly includes a mounting base, a collar, a magnet, and a Hall effect sensor. The collar defines a bore. One of the magnet and the Hall effect sensor is disposed within the bore and attached to the mounting base. The other of the magnet and the Hall effect sensor is attached to the collar. The Hall effect sensor is spaced from the magnet and is configured to detect movement of at least a portion of the collar relative to the mounting base.