Product Manual

The power On/Off and SensitivitySettings are
controlled by rotating the knob located on the
side of the Mag Horn. The unit has been
shipped with the Sensitivity Knob in the “off”
position or turned fully counter-clockwise. To
turn on, rotate the knob clockwise until you feel
it click. The Mag Horn will emit a very high
pitch tone and then settle to a lower tone of
about 40 kHz. Turn the Mag Horn off by rotating
the knob to its full counter-clockwise position.
You will feel it click and all sound will be lost.
3.2 Setting and Using the Sensitivity Control
Note: Use only the minimum
sensitivity needed to get the job done.
This will make your locates easier and faster.
Low Sensitivity is used to reduce signal
interference from nearby magnetic objects.
This is achieved by rotating the Sensitivity
Control Knob counter-clockwise. Reduced
Sensitivity is also useful to locate and pin-point
strongly magnetic markers.
At minimum sensitivity, you should be able to
hold or rotate the Mag Horn to any position
without producing a significant change in tone.
This will occur only when you are not over or
near a ferrous object.
High Sensitivity is useful to locate smaller or
deeper buried objects. Increase sensitivity by
rotating the Sensitivity Control knob clockwise.
Increasing sensitivity may also increase
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