Any used the mCubed Analogue Extension Set - Sensor Hub + flowmeters?

[MrToad]

The Swissflow is a hall effect sensor so little drag and reasonable at 25€ each. One more item to fit in though and they're not tiny by the time you put fittings on one.

I have one of those. I bought it back on January when I was doing my first loop.

Is accurate and fairly cheap, and the people @ swissflow were most helpful.

However, the pressure drop @ 1.5 gpm is 3.6 psi.

For comparison purposes... the Fuzion w/o nozzles has a pressure drop of 1.5 psi @ 1.5 gpm.

You can see the pressure drop curve (as supplied by Swissflow) below...