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Prizm™
II • III • IV • V
Prizm™ III Controls
In addition to the features of the Prizm™ II, the Prizm™ III
has an additional feature -
1. The depth of coin-sized metals is automatically indicated on
the lower left-hand portion of the display.
2. Metals larger or smaller than typical coin size will skew
this indication slightly. For example, a pop can will indicate
very shallow, however, may in fact be found quite deep in the
ground. A metal much smaller than a coin will indicate quite
deep, however, be found to be quite shallow in the ground.
Whatever the nding regarding a particular size, the results
will be consistent, repeated time and time again. If a metal
indicates an inch and after digging three inches it is still not
located, that item is larger than a typical coin. If pop cans are
common to the area disregard.
3. Typically lighter metals like the aluminum pull tab will
remain fairly shallow. A TAB indication that indicates fairly
shallow is likely a TAB. However, gold is heavy (typically sinks
more deeply into the ground) and may also indicate in the
TAB area of the display. A TAB indication that indicates fairly
deep should be dug, at least until determined that deep tabs
are also common to the area. Older more collectable coins
are found at greater depths in the ground. Deep indications
that have questionable tone and display indications are more
worthy of investigation compared to questionable tone and
display indications that produce shallow depth indications.
4. Regardless of the metal detector used, when searching, you
are going to dig some trash metals. Use the tone, display, and
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