G2 displays wrong depth (0,5m to deep)

[flotul]

Hi,

My G2 shows a depth slightly lower than it actually is.

Comparing with my buddies dive computer and my second dive computer, my G2 always shows 0,5m deeper.

What can I do?

 

[BrianRPaterson]

Hi.
I have an old 1992 vintage Uwatec Alladin Pro computer which I tested against a new Suunto Zoop last week. The Uwatec consistently read 1 meter shallow, compared to the Zoop.
Different deco info as well.
I can understand the deco difference - newer, more conservative algorithms, etc - but water pressure at depth doesnt change over time.
I wonder which one is correct?
Live long and keep diving