Garrett Metallsuchgerät AT Pro International Metal Detector 99630 AT Pro International 99630 Data Sheet

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