Prokit's Industries NT-6540 - Manual (Page 3)

Laser classification
The NT-6540 produced a visible laser beam which
emerges from the front of the instrument.
Laser Class 2 products:
Do not stare into the laser beam or direct it towards other
people unnecessarily. Eye protection is normally afforded
by aversion responses including the blink reflex.
WARNING:
Looking directly into the beam with optical aids
(e.g. binoculars, telescopes) can be hazardous.
PRECAUTION:
Do not look directly into the beam with optical aids.
CAUTION:
Looking into the laser beam may be hazardous to the
eyes.
PRECAUTION:
Do not look into the laser beam. Make sure the laser is
aimed above or below eye level.
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