Pressing this key one time measures the distance in normal mode. Another measurement type can be selected by InitialSetting 2.
Pressing this key twice measures the distance in coarse mode. Another measurement type can be selected by initial setting 2.
[TARGET] F2 Switches the target.
REFLECTORLESS / SHEET / PRISM
[0 SET] F3 Resets the horizontal angle to 0° 0’ 0” by pressing twice.
[S.FUNC] F4 PowerTopoExpress 2 Special Functions.
[MODE] F5 Switches the screen between MODE A and MODE B.