Anybody have an opinion on the small air pressure gauges made by Bravo? Looks like this one (https://www.amazon.com/Pressure-Achi.../dp/B00ZI1EQEC). I bought a new air compressor for my raft which has a pressure gauge. The compressor is reading about 1 psi less than the analog gauge by Bravo. I'm inclined to trust the analog gauge more than the compressor, but I thought I'd check on other opinions.