White’s Electronics TDI Pro - Manual (Page 15)

TDI Pro Owner’s Guide 15
gets, very high content gold nuggets (not common), U.S. gold coins above
2.5 dollars, 24K gold bullion (e.g. Canadian Maple leaf), small to large
nails when laying fl at in the ground and large pieces of iron, large pieces
of lead, lead mini balls, lead musket balls, lead loom weights, bronze
buckles, bronze weights, bronze artifacts, etc.
IMPORTANT – TARGET CONDUCTIVITY Toggle only functions when
the FINE GEB is ON (clockwise from OFF). If the FINE
GEB is in the OFF position, you must set the
CONDUCTIVITY TOGGLE to either ALL or LOW
If the TARGET CONDUCTIVITY toggle is set to HIGH with FINE GEB
OFF, there will be NO SOUND on any metal target.