Makita DWD181 Instruction Manual page 33

Using the Wall Scanner
Waveforms
Waveforms are shown when buried
objects (iron bars, etc.) in concrete are
scanned.
Burial detection marks are shown at
points corresponding to the locations of
iron bars, etc. (*)
A signaling sound beeps when any burial
detection mark is there within the sensor
area.
(*) Burial detection marks may not be
shown depending on the buried
object and the condition or internal
structure of the wall to be scanned.
In that case, estimate the correct
location from the waveform in the
image.
Before drilling, sawing or routing into a wall, protect yourself against
hazards by using other information sources. As the measuring results can
be influenced through ambient conditions or the wall material, there may
be a hazard even though the indicator does not indicate an object in the
sensor range (no audio signal or beep and burial detection marks).
WARNING
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