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CONTENTS
Threshold Tone
The optional Threshold Tone is a constant background tone that can help to make tiny
signals more apparent. It can also help you to set the optimum sensitivity level.
See "Manual Sensitivity" (page 12) for more information on using the Threshold Tone when adjusting the manual sensitivity
to maximise the depth of your detector.
The Threshold Tone is off by default in Auto and Auto+ sensitivity, and On by default in all Manual sensitivity settings. The
Threshold Tone can be toggled on/off. Each time the detector is powered off, the Threshold Tone is returned to its factory
default settings.
Turn the Threshold Tone On/Off
START `
1. Press the Ground Type button
for at least 2.5 seconds.
Long press for at
least 2.5 s
To toggle the Threshold Tone on/off, long press the Ground Type
button for at least 2.5 seconds.
The Threshold Tone is audible at any volume level.
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