I got a small digital gauge that reads in .5 PSI increments, my regular pump doesn't read down that low (its not even close).
The Motobecane is an incredible deal. There are some stinker parts in there (headset, QRs), I swapped some right away, but I'll swap the rest as they break. So far I am VERY pleased with it. After swapping tubes and cassette I'm under 35 pounds, which is downright svelte for a fat bike.