Kapro Prolaser Cross 862 Manuel D'utilisation page 18

6) Mark point a2 on the wall, in the middle of the vertical
line at the same height of a1. (see figure 8).
Figure # 8
7) The distance between a1 and a2, should not be more
than 1mm, otherwise to send the laser level to a
qualified technician for repairs.
18
X
a2
2m
a1
X X
SP