Medidor de flujo de gas

I test this meter and is excellent.

I already had a similar flowmeter but bought this as a gift for a friend who's just getting a TIG welder. I was rushing and accidentally bought the model with a single LPM scale instead of the one with both CFH and LPM that I wanted, so that's on ME. The unit has a nice magnetic base so it will store anywhere. The spring and clip do not seem too useful to me, but that's OK. I plan to make a CFH scale with P-Touch tape so all should be well. This flow meter reads 10% less than my other 2, but I have no way to know which is closest to the truth. For practical purposes, all are just fine.