Function
Area
Press this key once. This symbol is displayed.
Press key to take the first line measurement.
Press again and take the second line measurement. The
result is displayed in the main display area.
Volume
Press this key once，This symbol is displayed. Press
this key to take the three lines measurement and then
the volume value will be displayed in the main display area and
the third line measured value is displayed in the auxiliary area.
Pythagorean calculation
Pythagorean measurement is used in the condition that the
objective needing to be measured is covered or has no effective
reflecting surface and can’t be measured directly. The accurate
measured result can be got only when the laser beam and
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