Difference in planned Depth time - 2 computers (both Mares Puck)

I have 2 mares Puck dive computers. One is air integrated and the other is wrist mounted. All things set equal there is a minor differentiation in planned dive time between the two units. About 1-2 minutes.

Anybody experience this before? Just curious.


Envy

I would check the NDL time for 130' after the "no fly" time has run down on both. If there is a 1-2 minute difference, its time for service, a 10-20% error could get you into trouble. If the problem is after a dive with one clipped to a D-ring and the other on your wrist, I wouldn't be surprised as the depth difference between the two during the dive could account for the difference, just plan with the more conservative computer.


Bob
---------------------------------
There is no problem that can't be solved with a liberal application of sex, tequila, money, duct tape, or high explosives, not necessarily in that order.