Leupold GX-1i3 Operating Instructions Manual page 19

DAY OF PLAY TEMPERATURE/ALTITUDE INPUT (dP) (GX-2i
Temperature and altitude are two of the factors used to determine TGR ranges;
inputting the current temperature and altitude will increase
the accuracy of your TGR measurement . This feature is
intended for players who live in low lying areas and travel to
higher elevations to play golf . It isn't necessary to change these
values if regularly playing courses in the same geographical area .
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.
16
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3
M
Y
in
cm
ft