PRESSURE OPERATION
VIEWING PRESSURE AND ALTITUDE INFORMATION
To view pressure or altitude information, press MODE 
button. The display will alternate between the sea level 
pressure, local pressure and local altitude screens.
PROGRAMMING SEA LEVEL PRESSURE 
(Not required if altitude was programmed)
• Press and hold MODE, until the barometric pressure 
digits ash.
• Enter the desired sea level pressure value by pressing UP 
(▲) or DOWN (▼) buttons. (Press and hold either button 
for accelerated digit advance.)
• Press MODE, to conrm sea level value selection.
CHANGING PRESSURE AND ALTITUDE UNITS
• Press MODE as needed, until “LOCAL” pressure is 
displayed.
• Press and hold MEM/ HISTORY, until the pressure unit  
ashes.
• Change local or sea level pressure units by pressing the 
UP (▲) or DOWN (▼) buttons to select the pressure 
units. Choose from: inHg, hPa/mBar or mmHg.
• Press MEM/ HISTORY to conrm your selection.
• Press MODE button until the local altitude value is 
displayed.
• Press and hold MEM/ HISTORY until the altitude unit  
ashes.
• Select the ALTITUDE unit:, meters or feet, by pressing  
UP (▲) or DOWN (▼) buttons.
• Press MEM/ HISTORY to conrm your selection.
VIEWING SEA LEVEL PRESSURE HISTORY
• In pressure mode, press MEM/ HISTORY button to enter  
the sea level pressure display.
• When the SEA LEVEL is displayed, press MEM/  
HISTORY repeatedly to view the sea level pressure 
history for the past 24 hours in 1 hour intervals.
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