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be at if located at sea-level) is generally higher than your
measured pressure.
Thus, your absolute pressure may read 28.62 inHg (969 mb) at
an altitude of 1000 feet (305 m), but the relative pressure is
30.00 inHg (1016 mb).
The standard sea-level pressure is 29.92 in Hg (1013.2hpa).
This is the average sea-level pressure around the world.
Relative pressure measurements greater than 29.92 inHg
(1013.2hpa) are considered high pressure and relative
pressure measurements less than 29.92 inHg are considered
low pressure.
To determine the relative pressure for your location, locate an
official reporting station near from you (the internet is the best
source for real-time barometer conditions, such as the website
of Weather.com or Wunderground.com), and set your weather
station to match the official reporting station.
Wind Speed C alibration
In the calibration mode, press the SET button again and the
wind speed value will flash (the default is 1.00).
Press the CHANNEL/+ key or MAX/MIN/- key to adjust the
wind speed calibration factor from 0.75 to 1.25, where:
Calibrated Wind Speed = Calibration factor x Measured Wind
Speed
Press and hold the CHANNEL/+ or MAX/MIN/- key for three
seconds to increase or decrease rapidly.
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