Johnson GreenBrite 3x360 Plane Laser Mode D'emploi page 18

Using the Target
The target is used to enhance the laser
Magnets
beam visibility. The target uses magnets
for easy mounting to ferrous surfaces in
either horizontal or vertical positions. It
has measurements in both English and
Metric scales (inches/cm). This item is for
use with green laser levels. (Figure 20)
Figure 20
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