Starting at $1,222.57
  • Usually ships in 1-2 weeks



  • Temperature: -40 to 221°F (-40 to 105°C)
  • Pressure: 10 to 58psi (0.7 to 4bar)
  • Process connections: Thread, Tri-Clamp
  • Max. measuring range:
    • Liquids 10m (33ft)
    • Solids 5m (16ft)
  • Time-of-Flight correction
  • Hermetically welded sensors (316L, 1.4404, 1.4435)
  • Suited for rough ambient conditions
  • Reduced build-up formation
  • Weather resistant and flood-proof (IP 68)
  • Hygienic process connections available


The E+H Prosonic FDU91F Ultrasonic Level Sensor is designed for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. Also for flow measurement in open channels and at weirs. Measurement is unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of sensors. Fully welded 316L with hygienic process connection available. Maximum measuring range in liquids 10m (33ft), solids 5m (16ft).


Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.