Application description: The conductive rod probe SAT in combination with suitable switching devices (e.g. fill level limit switch SRA-100, SRA-101, SRA 102, SRE-200) is used for limit value detection and niveau control in electrically conductive liquids. Also possible is the detection of overflow, dry run, humidity, flow. Depending on the selected type, it is possible to realize up to 6 switching points. The longest rod operates as ground reference. The connection housing is protected against splashing water IP65.