A Top Mounted level indicator has a simple design that requires just one process connection. This configuration has a chamber with a single flange at the bottom. Inside the chamber, a magnet attaches to the top of a rod and a float attaches to the bottom. The float rests on the surfaces of the liquid in the tank. The magnet activates flags on the level gauge indicating the fill level of the tank.

For tanks that are often moved, adding a stilling well will ensure the float stays perfectly vertical and in line with the level gauge. A stilling well is also recommended for addressing other issues. Such as agitation inside the tank, inlet proximity, and extra-long rods that are prone to bending.