Pushing power supply key begins
the automatic self-leveling.
The off level display lamp blinks in
red during activating the leveling.
The blink interval becomes longer
gradually as the leveling comes
near to completion.
The color of the off level display
lamp turns to green when the
leveling is completed, a rotor
begins to rotate and then a laser
beam is emitted horizontally.
The lamp (green) is turned of
about 5 seconds later after the
leveling completion.
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