Leupold GX-3c Operating Instructions Manual page 22

5) To save the changes and return to ranging mode, let the unit
sit idle for a least 30 seconds until an automatic power-down
occurs, or simply press and hold MODE for at least 2 seconds .
NOTE: If Yards is selected, the temperature will automatically be
measured by Fahrenheit. If Meters is selected, the temperature
will be measured in Celsius.
CLUB SELECTOR SETUP (SU) (GX-5c only):
NOTE: You cannot input a distance value less than or equal to
the previous club. For example, if you choose 155 yards for
your 8-iron, the lowest available distance for your 6-iron will be
160 yards.
1) Press POWER to activate the rangefinder .
2) Press and hold MODE for at least 2 seconds and then release
to enter the Quick Set Menu .
3) Press and release MODE until 8 Iron is displayed .
4) The 8-iron indicator will be shown in the
upper display, and the last saved distance
will be shown in the lower display . If you
wish to input a distance other than the one
shown, proceed to step 5 . To save the shown
distance for your 8-iron, press MODE and
skip to step 6 below .
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