- Iron filings detection
- Salt detection in brine tank
- Sludge height monitoring in:
      Thickeners
      Primary clarifiers
      Industrial processes (sludges with iron hydroxide, high density slurry, etc.)

A complete system includes a MUDSonic TS immersion probe and a MUDSONIC MF operating unit.
The detection is done between emitter and receiver of ultrasonic waves.
The probe evaluates the concentration of solid particles by attenuation of the signal.
The probe is immersed at a fixed height in the tank; It triggers a switch when the concentration (predefined) is reached (sludge level rising by settlement).
The trigger point and timer are adjustable on site (real operating conditions)