Johnson Level & Tool Mfg. 40-0921 - Manual (Page 7)

©2013 Johnson Level & Tool - Rev. 2 7
7. Using the Product
Horizontal and Vertical Line Projection
Turning on the knob on the side of the unit will generate a simultaneous
vertical and horizontal line laser beam. To turn off, simply turn knob
counter-clockwise. If you have unlocked the knob on side of the unit
(as per previous page) then simply allow for the unit to level itself.
The unit can be manually rotated to the full 360º range.
Note: The laser level is able to compensate for slope of +/- 6º. If
the level is placed on a slope that is too great, it will not be able to
level itself accurately. The laser beam will flash if outside of its
leveling range.
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