The FS7 Series Float Level Switches provide an economic solution to monitoring the most common liquid levels applications in tanks and other vessels. Magnets within the float actuate the sealed reed switch on rising or falling levels. These switches are mounted in the vertical position and are shipped in the normally open position. The switch action can easily be reversed (normally closed position) by removing the float, rotating it 180° (end-to-end), and replacing the float on the stem.