Why need to adjust the sea level pressure
As altitude is calculated by the difference between current
and sea level pressure, so the sea level pressure changing or
using the watch in a place which has a different sea level
pressure will effect the altitude reading.
To achieve a more accurate reading, sea level pressure need
to be updated from place to place and from time to time.
How to adjust the altimeter by using sea level pressure
adjustment
1. The watch can adjust the current altitude reading by sea level
pressure adjustment.
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