The Agma22 level regulator is a very useful instrument when used directly on pumps which must work in very small wells, for which the common float switch would not have enough room to work.
The patented instrument, with magnetic coupling is composed of a float which runs inside a cylinder and has a magnet on top, which, when it is near the upper side, attracts the microswitch lever.
The microswitch is placed in a completely sealed box which guarantees a long life to the instrument.