Garmin 010-00970-00 Data Sheet

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20 
eTrex Owner’s Manual
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Calibrating the Barometric 
Altimeter
You can manually calibrate the 
barometric altimeter if you know 
the correct elevation or the correct 
barometric pressure.
1.  Go to a location where the elevation 
or barometric pressure is known.
2.  Select Elevation Plot > menu > 
Calibrate Altimeter.
3.  Follow the on-screen instructions.
Trip Computer
The trip computer displays your current 
speed, average speed, maximum 
speed, trip odometer, and other helpful 
statistics.
To customize the trip computer, see 
Resetting the Trip Data
For accurate information, reset the trip 
information before beginning a trip. 
Select Trip Computer > menu > 
Reset > Reset Trip Data > Yes
All of the trip computer values are 
set to zero.