FYUQK - 240 series maglev ball liquid level gauge is from sensor transmitting device and the display instrument (factory default to not display instrument, such as the need is available separately). Are widely used in oil refining, electric power, chemical industry, papermaking, food, sewage treatment and other industries, for all kinds of openings, airtight container and medium level in the underground storage tank can be carried out in situ show that will be sent at the same time the output standard 4-20 madc current signal and transmitted to the computer, controller, liquid level display, so as to achieve the purpose of control, adjustment, display, alarm.