Magnetic Bond Method:

The magnetic bond method was established to overcome the problems of cages and stuffing boxes. The magnetic bond mechanism will be consists of a magnetic float that rises and falls along with changes in level. The float travels outside of a non-magnetic tube that houses an inner magnet linked to a level indicator. While the float rises and falls then the outer magnet will attract the inner magnet and causing the inner magnet to follow the level inside the vessel that was display in the next figure.

Figure: Magnetic Bond Detector