The working principle of multi-point float level switch is direct and simple. Set one point or multi-point of magnetic switch in sealed un-magnetic matal or industrial plastic tube,
Fix the float with inner magnetic system in a certian place of magnetic switch in the pipe and let the float drift up and down; utilize the inner magnetic system in the float to trigger the open and close of magnetic switch to operate and control the liquid level.
Multi-point float level switch is widely used in level control and alarm of all kinds of industry such as electronic,electric powerm chemical, water treatment, water supply and drainage.etc.