Float switch is a simple, easy to use level control device, it does not provide power, no complicated circuit, it has a small volume than mechanical switches, the advantages of long working life. As long as the right choice when selecting material, liquid or any kind of pressure, temperature can be used, and its shipbuilding industry, generating equipment, petrochemicals, food industry, water treatment equipment, dyeing and finishing, hydraulic machinery, and other aspects have been extensively application.

Works: An important level sensor float by the reed switch and the composition of the float within the magnetic material, in a confined non-magnetic metal pipe or plastic pipe set one or more magnetic reed switch, and then through a catheter or more with the magnetic float, and float with double loop control using a fixed magnetic reed switch in the relevant position, the float rises or falls with the liquid, the use of magnets to attract the ball inside the reed at the beginning of the contact, resulting in open and related actions for level control or direction (when the float near the reed switch is conducting; Leave switch off).