Ultrasonic level sensors ULS-53 High-frequency level sensors RFLS-35 High-frequency level sensors RFLS-28 Capacitive level sensors DLS-35 Capacitive level sensors DLS-27 High-frequency level switch RFLS-53 Capacitive level sensors CLS-23 Submersible level sensor CLS-23S Thru-wall level switches GPLS-25 Thru-wall level sensor FLD-32 “Flexi Watch” Capacitive proximity switch CPS-24 Float system FS-4 Conductive probes CNP-18 Capacitive touch sensor CTS-41