Altimeter Current altitude: range up to 29,500 ft / 9,000m - resolution 10ft / 5m Ascent/descent rate in ft/min or m/min Difference measurement function allows zeroing of the altimeter for following vertical progress between stages Automatic 24-hour memory stores altitude and ascent/descent rate for every hour Logbook stores total ascent/descent, average ascent/descent rate, number of runs skied, duration of log Barometer Absolute pressure range 8.90 - 32.40