In the semiconductor industry level detection in direct contact with media is not a preferred method. However in waste tank level applications direct contact is not an issue. Balluff offers the widest variety of capacitive sensors and mounting methods in the market. Complete Teflon (PTFE) sensors with Teflon switch wells would be the ideal solution for this application. Balluff's hybrid capacitive technology offers the most reliable solution as it would ignore the filming and material build up on the sensor and switch well.