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Getting
started
53
•
Surface
level
:
Use
the
device
to
determine
if
a
surface
is
level
by
placing
the
device
on
the
surface.
The
surface
is
level
when
the
x
and
y
values
are
close
to
or
equal
to
zero
degrees.
–
Tap
Calibrate
to
calibrate
the
level.
•
Ruler
:
Use
the
edge
of
the
device
as
a
ruler
to
measure
a
straight
line
in
either
inches
or
centimeters.
Tap
the
unit
name
to
change
the
units.