The Prosonic FDU91 is an ultrasonic level sensor for wastewater treatment plants, stormwater systems, and bulk solid silos. The non-contact measurement principle is ideal for corrosive and abrasive media.
| Measuring range | Up to 5 m (liquids) |
| Process temperature | -40°C to +80°C |
| Output | Via FMU90/FMU95 transmitter |
| Approvals | ATEX, IECEx, FM |