Description:This is a stainless steel float swith. This float switch is a device used to sense the level of liquid within a tank the switch may activate a pump an indicator an alarm or other device. This float switch is a simple structure easy installation liquid level controller.It does not have a complex circuit will not be disturbed as long as the material selection liquid pressure or temperture can be used in any environment. Light weight and simple working principle high reliability. The versatility of this vertically monted sensor means that it can be installed either at the top or base of your tank depending on whether you wish to detect the waters rise or fall. The float level switch is widely used in electronic electrical chemical water drainage and other walks of life level control and alarm. Installations: Top mount switch is Open when water is at High level Top mount switch is Closed when water is at Low level Bottom mount switch is Open when water is at Low level Bottom mount switch is Closed when water is at High level