Leupold GX-2c Operating Instructions Manual page 16

NOTE: If Yards is selected, the temperature will automatically be
measured in Fahrenheit. If Meters is selected, the temperature
will be measured in Celsius. Altitude is measured in feet for both
Yards and Meters.
TO INPUT THE CURRENT TEMPERATURE AND ALTITUDE: (dP)
1) Press POWER to activate the rangefinder .
2) Press and hold MODE for at least 2 seconds to enter the
Quick Set Menu .
3) Verify that TGR is turned on; if TGR is not activated, you will
not be able to enter the current temperature . To activate TGR,
see "To Activate TGR" (page 12) .
4) Press and release MODE again; the last saved temperature will
be flashing in the lower portion of the display .
5) While the temperature is flashing, press and release POWER
to change the current temperature setting to match the
current conditions . Each depression of POWER will increase
the temperature setting by 5 degrees until 120 degrees F
has been reached, at which time the setting will return to 30
degrees F and begin increasing again . Press MODE to save
the changes .
6) Press and release MODE again and the last saved current
altitude will be flashing .
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