IFM-Electronic-LI5141-Binary-Level-Sensor-IFM-Electronic-LI5141-This-binary-level-sensor-uses-the-capacitive-measuring-principle-&-direct-contact-with-media-to-detect-when-a-set-limit-level-is-reached-outputting-a-switched-signal-for-other-process-equipment-The-sensor-will-detect-media-with-a-dielectric-constant-gt-1-8-including-hydrous-coolants-oils-lubricants-water-&-media-similar-to-water-Ideal-for-applications-such-as-monitoring-liquid-level-in-tanks-overflow-protection-in-a-