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©2018 Johnson Level & Tool 19
8. Tips from the Pros
Take more than one measurement in
situations where accuracy is critical.
Take 3-4 measurements from the same
position to compare the consistency of
each reading.
To accurately measure objects lacking
an inside corner from the rear of the
instrument, use a scrap piece of drywall or
other flat material to extend the corner.
Butt the Laser Distance Meter up to the
material (as shown).
If error message “ERR 2” appears, place a white sheet of paper or
reflective tape over the targeted measuring surface to improve the
return signal.
Be aware that when outdoors, the working range of the tool
decreases significantly due to ambient light. The “unfavorable
conditions” accuracy and distance limits shown in the
specifications section quantify the performance you should expect
from your laser distance meter in bright sunlight conditions.
To make the laser beam more visible, aim it down in front of you
and then follow it with your eyes as you move it towards the
desired target.
When making Pythagoras measurements, make sure that you
hold the tool as flat as possible during your second measurement
for the most accurate measurements. The beam should hit
perpendicular to the object you are measuring.
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