It is the same flow sensor recommended by the old Rocky Mountain Instrument 20+ years ago.
Do not know a lot about the RED Cube other than more people have had problems with it than they have with the Flowscan. I was under the impression that the Flowscan was a superior (better) product for fuel flow measurement.
Gary A. Sobek
NC25 RV-6 Flying
Building RV-8 S/N: 80012
To most people, the sky is the limit.
To those who love aviation, the sky is home.