Just an update on my Black Box. It did not have a pressure transducer for a pitot tube to measure velocity. I was able to get a transducer from Kevin at PT. It was a 5 psi unit. It was a simple plug in and now I have it up and running. A DAQ is way faster and easier than a water gauge. I can record port velocities directly into Port Flow Analyzer now. To me it is well worth the expense. My velocity going over the SSR in the middle with my water "U" tube gave me a reading that gave 220 fps at 10" test pressure. Once calibrated the Black Box gave me a reading of 219.9 fps.
John