Magnetic level gauge, local display, no power required. Suitable for a variety of environments from low temperature to high temperature, vacuum to high pressure. It is an ideal level measurement products for petroleum, chemical and other industrial sectors. The magnetic float level gauge is equipped with upper and lower limit switch outputs to realize remote alarm and limit control. Equipped with transmitter, can realize long-distance indication, detection and control of liquid level. Different materials are provided according to different medium, and it is also suitable for corrosive medium such as acid and alkali. Wide range of applications, various installation forms, complete isolation of the measured medium from the indicator structure, good sealing performance, leak-proof, suitable for liquid level measurement under high pressure, high temperature, and corrosion conditions, high reliability, simple structure, convenient installation, and low maintenance costs.