I will be testing around 28 but i would still like my CFM to be calculated to 28
I am currently using a FP2.0 with water manometers and it is very close every time I calibrate. I have even checked it with 10 calibrated orifice plates and it was a percent or 2 good enough for me
I would like to go digital but this box is like going back to stone age of PC programming, and its support docs are ....... well .......
