Lever sensor

The single unit or multiple reed switch units are housed

tightly in stainless steel or engineering plastic stem

and the permanent magnet is inter-circled into the

middle of the specified float ball(s). The float ball

can be mounted to penetrate through the stem, and then

the liquid buoyancy will deliver the float ball up and

down at the specified position by graduating rings. When

the float internal magnet approaches the reed switch, it

will actuate the reed switch contact point to create an

open or close circuit. We can apply such on-off output

signals to reach liquid level controlling and monitoring

purpose. The figures below show the float orientations

on N.O. (Normal Open) and N.C. (Normal Close).