How come the altitude calculation is wrong? Is my BMP sensor broken?

No, your sensor is likely just fine. The altitude calculation depends on knowing the barometric pressure at sea level

If you do not set the correct sea level pressure for your location FOR THE CURRENT DAY it will not be able to calculate the altitude accurately

Barometric pressure at sea level changes daily based on the weather!

This guide was first published on Jun 04, 2014. It was last updated on Jun 04, 2014.

This page (F.A.Q.s) was last updated on Sep 17, 2020.

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