Originally posted by late
Hi,
Altimeters that rely on air pressure are a joke. Get a nice computer, and if you really want an altimeter, get a GPS one.
Things are slightly different then this, if you calibrate a quality air pressure meter as often as you can, the accuracy is set between 5 to 20 meter.
A GPS however requires at least 3 sattelites for the longtitude/latitude and one for the altitude.
Because there`s only one signal for height, accuracy is set between 20 and 100 meter.
This is the reason you see a lot of alpinists/ mountaineers with air pressure meters, rather than a GPS, their accuracy is far more better.
cheers
