Dave1w

Hi Mikel,
I think with regard to your sensors, you can find a chart that gives the pressure at that altitude, and then just set your calibration to 21% of that pressure.

I think it is better to actually measure the pressure when you are there, and act accordingly.

Then for deco, most computers would be able to figure it out if you set them to altitude. Something to beware of, not all the computers take into account whether or not you have acclimatised to the altitude.

Tables made by software can also do it.

Best to add some safety fudge into whatever deco you plan.

I am sure someone will come along soon with better details

Dave