Suunto ADVIZOR Manual De Instrucciones página 57

Indoors, even small, unnoticeable air currents cause changes in air pressure. For example, if you have a
window open at the other end of your house, the air current may affect a room at the other end of the building
so little that you do not notice it, but the sensors of the Wristop Computer do. Because the Wristop Computer
measures ascent and descent based on changes in air pressure, it interprets these changes as vertical movement.
7.5 BAROMETER
It is the barometric trend indicator that shows the general direction of weather changes. The display is based on
barometer measurements for the last 6 hours.
No, the Wristop Computer continually accumulates data on barometric pressure existent within a 3 to 6 hour
window and displays general barometric trends in weather based on the accumulated data.
Absolute pressure is the actual pressure in any location at any given time. Relative pressure on the other hand
equals the corresponding pressure at sea level for a certain altitude that you are at. For example, if you are at
an altitude of 1,000 m/3,300 ft the absolute pressure normally is around 900 mbar/26.60 inHg. The relative
pressure at sea level would then be around 1,013 mbar/29.90 inHg.
When the unit is temperature compensated, the altitude measurement of the unit is not affected by the temperature
of the unit itself. The unit can be worn on your wrist or placed on a table – it will in either case give you the
proper altitude reading providing the weather conditions have not changed. All Suunto Wristop Computers are
temperature compensated within the range –5 to 140 ° F / - 20 to +60 ° C.