The E+H Prosonic FDU93 Ultrasonic Level Sensor is for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. But also for flow measurement in open channels and measuring weirs. The measurement is unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of sensors. Suited for explosion hazardous areas. Maximum measuring range in liquids is 85ft (25m) and solids 50ft (15m).

The sensor features threaded process connections and operates at temperatures from -40 to 203°F (-40 to 95°C) and pressures from 10 to 43 psi (0.7 to 3 bar). Blocking distance is 0.6m (2ft). International explosion protection certificates are available, making it suitable for hazardous area installations.