This is the difference between chasing ground noise and digging targets

Dedicated diving earplugs (pressure-equalizing type only

accepting the shallower depth in exchange for hearing targets other detectors miss entirely

Gold Monster coil waterproof to 3

and small jewelry

Detech 18" DD Closed Design Search Coil for Minelab GPX, GP, SD Series Gold Detectors nugget-hunting This is the difference betweenDetech 18 DD Closed Design Search Coil for Minelab GPX, GP, SD Series Gold Detectors Weight: 1460 grams This is the largest of the closed design series of gold coils. Designed and developed for gold detecting open areas, known to contain deep gold. The coil is the deepest seeking mono in the range. And still sensitive to sub gram gold. Features Very stable operation. Better Sensitivity. More accurate target identification. More stable ground and