Which pressure to enter when manually calibrating barometer from an elevated point

When I manually enter the current pressure in my Instinct, it says "at sea level".

If I'm not at sea level, should I enter the atmospheric pressure I read on traditional barometer or do I have to adjust it to sea level?

Thanks

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trux over 5 years ago +2 verified

It depends what pressure your barometer shows and how it was calibrated (if at all). If it shows the MSLP (Mean Sea-Level Pressure), then you can use it directly. If it shows a raw absolute (uncalibrated…

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+1 trux over 5 years ago

It depends what pressure your barometer shows and how it was calibrated (if at all). If it shows the MSLP (Mean Sea-Level Pressure), then you can use it directly. If it shows a raw absolute (uncalibrated) pressure, then you need to adjust it. It may be safer getting the local pressure online from a weather station near you. They usually give the MSLP.

0 dude1x over 5 years ago in reply to trux

Thanks!