The float switch cannot directly control solenoid valves or power relays, exchanges and contacts and the like. To add a small relay transition (e.g. HH54P). The float level switch is a simple structure, easy to use level control device, no need to supply power, no complicated circuit, it has a volume more than mechanical switches, long service life and other advantages. As long as the material selection is correct and the nature of any liquid or pressure, temperature can be used, which in the shipbuilding industry, production equipment, petrochemical, food industry, processing equipment, dyeing and finishing industry, hydraulic machinery, etc. been widely used. Tired of guessing how much or fuel is left in your tank, you need any liquid float switch, which is made of stainless steel. Small and inexpensive switch can be used in most liquid environments. It can also be easily converted from normally open to normally closed by reversing the float. Specifications: Contact Capacity (Max):