is there a compass assembly that is calibrated for the Southern Hemisphere?
KELLY-ANNE M I bought all my stuff in the US and now live in Australia. A compass is a compass, north is still north no matter where you are.
RICH W Not to my experience, but you could check the Aeris website for details.
KARL S There is no magnetic compass that is calibrated for anywhere as there's a
deviation from true north to magnetic north everywhere on the planet. That being said North is north and South is south except on the poles. Go to NOAA National Geophysical Data Center for the for the corrections for any latitude or longitude you are diving and correct your compass accordingly. I have used my Aeris X1 without difficulty in the southern Hemisphere using this data. Hope this is useful.