During initial power up (within the first 5 – 10 minutes) the weather station will not operate. These parameters can be modified after the display has stabilized
Select the Pressure and Weather Forecast window by pressing UP or DOWN arrow button until the pressure and weather
forecast icon 
starts flashing.
NOTE: Locate your altitude with a portable GPS receiver or topographical map .Locate barometric pressure at: http://weather.noaa.gov/weather/ccus.html or, alternatively, from local radio or TV weather channels.
Changing or Setting Sea Level Pressure
∙Press SET button until the local pressure with the word “SEA LEVEL” is displayed.
∙Press and hold MEMORY button until the pressure unit is flashing, inHg, mmHg or hPa/mBar
∙Set the pressure units by pressing the UP or DOWN arrow buttons
∙Press MEMORY button to confirm your selection
∙Press and hold SET button until the local pressure digits will flash.
∙Set the sea level pressure by pressing the UP or DOWN buttons to adjust the pressure value. Press and hold UP or DOWN arrow buttons for faster digits advancement
∙Press SET to confirm your selection.
Changing or Setting Altitude
∙Press SET button until the local altitude value will be displayed
∙Press and hold MEMORY button until the altitude unit is flashing, Feet or Meters.
∙Press UP or DOWN arrow buttons to set altitude in feet or meters
∙Press MEMORY button once to confirm your selection
∙Press and hold SET until the pressure digits are flashing.
∙Set the altitude value by pressing the UP or DOWN arrow buttons. Press and hold UP or DOWN arrow button for faster digits advancement
∙Press SET button to confirm your selection.
Viewing the Sea Level Pressure History
∙From any mode, press the HISTORY button. Unit will select the Pressure/ Weather display.
∙When the SEA LEVEL is displayed, press HISTORY button repeatedly viewing the sea level pressure history for the past 24 hours in hour intervals.
∙If no buttons are pressed for 5 seconds, the unit will automatically exit history mode and return to the Pressure and Weather Forecast mode
.
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