Product working principle:

The float switch is a simple and easy-to-use liquid level control part. It has no complicated circuit and is not subject to interference. Usually it is placed in a closed metal tube or plastic tube, and one or more reed switches are provided. After that, one or more hollow floats with a ring-shaped magnet inside the reed pipe are fixed on the rod diameter, and are fastened to the position of the magnetic spring by a buckle, so that the float ball is in a certain range with the liquid level. The surface changes in height and floats up and down, using the magnet inside the float and the reed switch to generate magnetic field induction, so that it generates an open and closed action signal, and controls the liquid level.