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6. Altimeter
The altimeter is a type of aneroid barometer that shows the pressure reading as feet of
altitude or elevation. An altimeter reading is most accurate in showing actual true altitude
when it is on or near the airport from which the altimeter setting has been obtained. An
altimeter is set by adjusting it to show local differences in atmospheric pressure. When an
accurate altimeter has been set to the local pressure, it will read the airport's elevation when
it is on the surface of the airport.
