Dan E Does this gauge work with Air and Nitrox ?????
DANIEL E Yes , It works equally well with air and nitrox. I use the gauge for a backup and it is very readable and accurate. I'm an older diver {since 1967,532 dives} and I mostly use nitrox. I did change the O ring to viton.
DUSTIN S I have used this gauge with air blends from 21 - 36% oxygen with no issues.
DENNIS O Yes this gauge is fine for air or nitrox. Modern scuba equipment is generally all suitable for switching between the two, except for those made of titanium.
BRIAN M As long as it's O2 clean you can use it with any kind of gas(es).