Quote: (Originally Posted by
Paul Brookes)

I know that depth readings can vary at depth, but I have not heard of them being so far out at shallow stop depths...
IMHO it is not normal for that much off in your case.
Depth readings are off between some computers since some are calibrated in freshwater, some in saltwater and some has automatic routine to adjust (I guess measuring the resistance in water ?), but I haven't seen 1.5m off at 5m depth.