Doppler Flow Meters
The QC-DT-1 Ultrasonic Flow Meter (click for brochure) can measure flow in virtually any liquid.  These meters can measure flow using either the doppler or transit time methods. The ultrasonic transducers are clamped to the outside of the pipe wall. This method of flow measurement is safe, non-intrusive, and very easy to use.

Contact Quality Control Equipment Company at 515-266-2268 for more information on doppler/transit time closed pipe ultrasonic flow meters.