Depends on detector, if using one not designed for salt water you may not get that much if sensitivity was turned down to stop the falling. On my multi freq excal I hit coins at 20+ in all metal.any member us one whats the depth on say a soda can size object or bigger ? am guessing 8" .....i like to know
Yes, with a good PI UW Detector, you could hear a soda can at 24"+. Not a fun thing to dig up.
Im not sure but i think op may be referring to the Deteknix Scuba tector.