[JulianEdgar]

Originally Posted by cr45

Thanks for the explanation.

Would it be feasible to use an electronic differential manometer such as this +/- 1 psi one. It has a resolution of 0.01" H2O and a full scale accuracy of +/- 1.0 percent.

https://www.az-instrument.com.tw/en/...-82012-AZ.html

Yes it would - do you have a price?

I try to avoid using instruments that are too expensive for normal modifiers. The low cost digital manometer I have has a highest resolution of 0.1 inch of water - no good.

Edit - this looks good https://www.amazon.com.au/Perfect-Pr...22441494&psc=1

Second edit - just bought it.