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If no button on the measuring tool is pressed for approx. 5 minutes and no objects are
detected, the measuring tool will automatically switch off.
Switching audio signal on/off
The audio signal can be switched on or off with the audio signal button (6). When the au-
dio signal is switched off, the audio signal status indicator (c) will appear on the display.
How it works (see figure B)
The measuring tool checks the base material of the sensor area (17) in the measurement
direction A up to the maximum detection depth.
Metal objects (e.g. copper pipe or reinforcing steel) and live cables (50–60 Hz) are auto-
matically searched for during each measurement. The metal/electricity button (4) will
light up to provide confirmation.
To also search for wood in dry walls, press the wood button (5). This function is con-
firmed by the wood button (5) lighting up. To switch off the wood detection function,
press either the wood button (5) or the metal/electricity button (4) so that the wood
button (5) turns off.
Note: Only switch on the wood detection function for searching in dry walls with a
wooden substructure. On other surfaces, the measurement result may be impaired.
Measuring Process (see figure C)
Position the measuring tool on/against the surface being inspected. The light-up ring (1)
will light up to indicate readiness to measure.
Hold the measuring tool uniformly by the gripping surface (8). Do not change your grip
during the measurement and, in particular, do not touch the sensor area (17).
Always move the measuring tool in a straight line in direction B over the surface, applying
light pressure, without lifting it off or changing the pressure. The measuring tool should
primarily be moved transversely to the object you are searching for. If you do not know
how the object is aligned in the wall, perform a cross measurement (see figure C).
Detection Indicators:
– If no object is detected below the sensor area, the light-up ring (1) will light up green.
The measuring indicator (b) is empty and no audio signal will sound.
– When the measuring tool approaches an object, the light-up ring (1) will light up red.
As the measuring tool gets closer, the amplitude in the measuring indicator (b) will in-
crease and the audio signal will sound more quickly.
– Above the centre of an object, the measuring indicator (b) will indicate the maximum
amplitude of the measurement, the object centre indicators (a) will light up and an au-
dio signal will sound. The light-up ring (1) will continue to light up red.
Bosch Power Tools
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1 609 92A 92B | (17.11.2023)
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