Barometric altimeters are most common, and measure altitude above sea level using atmospheric pressure. Modern commercial ...

PropVario is a combination variometer and altimeter for Radio Controlled sailplanes ... usually called a rate of climb or vertical speed indicator. R/C pilots don’t have the luxury of looking ...

and has now built a way to play them back on an aircraft altitude indicator. A Python script is used to parse a recorded GPX file, which stores position and elevation data captured from a GPS ...

You may not know that it can also function as a real barometer and altimeter, allowing you to ... have any need or desire to know your current altitude or atmospheric pressure, aspiring ...