XP Metal Detectors Goldmaxx Power Instruction Manual page 18

M U L T I - T O N E
I N F O R M A T I O N
In addition to these three basic tones, Goldmaxx Power has another
advantageous feature: it can produce several different tones
simultaneously for targets in intermediate categories. Your ear will
eventually grow accustomed to this abundance of sounds.
Certain medium-sized ferrous masses that are usually hard to identify
are signaled by a simultaneous low/medium/high pitch (except for
very large ferrous masses, of course, which generate a high pitch). It
takes a little bit of practice to accustom your ear to the various tones.
17
6