KOBOLD's M-series magnetic level switches are used for the monitoring and control of liquid level in tanks. These level switches are specifically manufactured to customer specifications.
The float switches are manufactured with a hermetically sealed contact which is located within the guide tube. The float sliding on the tube contains a ring magnet which activates the sealed contact in a non-contacting fashion. The sealed contacts are available as SPST (N/O or N/C) or SPDT (N/O + N/C).
The float sliding up and down on the guide tube is the only moving part on the M-series magnetic float switches. To keep your head above water knowledge wise, checkout the M-series datasheet and the M-series magnetic level switch user manual.