Accurate level meter

The magnetic flap level gauge/level gauge consists of a bypass cavity, a float and a magnetic display body. The bypass chamber is connected to the tank through at least two process interfaces (flanges, threads or welded ends), and the same height is introduced into the liquid level in the tank. The float is located inside the cavity and floats on the liquid surface. The float has a built-in permanent magnet. The magnetic field can pass through the wall of the bypass cavity to trigger the flip of the magnetic display mounted on the outside of the bypass cavity to achieve non-contact liquid level indication.