I took my Petrel out this weekend and noticed that it is reading shallower than my Oceanic Pro Plus 2.1. The Oceanic matches analog gauges, so I don't think it is wrong. When the Oceanic was indicating 120ft, the Petrel was indicating 113. When Oceanic was 108, Petrel was 102.4. I have it set for saltwater. It also said I had a deco obligation when the Oceanic said I had 7 minutes of no deco time left.
Thoughts and solutions?
Thoughts and solutions?