AT Pro International™ 21
Note: Target values can vary based on the orientation of the target in the
ground, amount of ground mineralization, etc. It is important to practice in
the field to learn how these factors can affect Target ID.
The Tone ID feature produces three distinct audible tones
based on a target’s metal type and conductivity:
Low-Tone:
Ferrous targets such as nails, iron,
steel,
etc.
Medium-Tone: Small, thin targets that are non-ferrous,
such as small jewelry, foil, and some very
thin, hammered coins.
High/Bell Tone: Non-ferrous targets with medium to high
conductivity, including most coins and
jewelry.
Note:
PRO Mode produces a high
tone; STD Mode produces a bell tone.
TONE ID
