Features: Made of high strength polypropylene quality, which ensures a long service life. This float switch is used to control the pump operation, adjust the liquid level, and also can be installed on the submersible pump to control the motor < li>The float switch is based on the principle of gravity and buoyancy, with simple and reasonable structure. It is automatically adjustable, easy to use and install, safe, reliable, non-toxic and environmentally friendly. Widely used in swimming pools, barrels, troughs and other containers containing water, oil, acids and alkalis in households, factories and mines. < /ul>