The 65-Foot Tier: Past Snorkeling, Short of Salvage
Detectors rated to 65 feet occupy the useful middle of underwater detecting: deep enough for snorkeling, free-diving, and shallow scuba work on wrecks, drop-offs, and dredge holes, without the commercial pricing of 200-foot salvage units. Water pressure roughly doubles every 33 feet, so a 65-foot rating reflects genuinely different engineering than a 16-foot seal, in the housing, the connectors, and the coil cable entries. Treat the rating as a hard limit and leave yourself a margin.
XP DEUS II: Multi-Frequency at Depth
The standout in this tier is the XP DEUS II, which carries full FMF simultaneous multi-frequency performance to a 65-foot rating. That combination matters: most deep-rated machines historically gave up target ID for depth, while the DEUS II keeps stable discrimination on submerged targets, which saves air and effort when every dig means fanning sand at depth. For ranked picks across every depth tier, see our best underwater metal detectors guide. Its remote and coils are sealed for submersion, with wired bone-conduction headphones handling audio underwater.
Complete the Dive Kit
Underwater recovery is slow without the right tools. A depth-rated waterproof pinpointer finds the target in low visibility, a diving scoop handles the bottom you are working, and submersible search coils let you match coverage to the site. Confirm every component you submerge carries the same rating as the machine.
Why Buy a Deep-Water Detector from Serious Detecting
A depth rating is a warranty claim, and it is only worth what stands behind it. Serious Detecting is an authorized US dealer for XP, Minelab, and Nokta, so the seals on these machines are backed by genuine manufacturer warranties rather than gray-market promises. Orders over $99 ship free within the lower 48, local pickup is available out of Michigan, and our staff hunts water. Tell us how deep you actually dive and we will make sure the machine and every accessory on it are rated for the trip.