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Thank youYou can download the MXT Pro manual here which is close to your model.
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The coil is waterproof.
AT 14 Khz it should be sensitive to small thin gold jewelry, and have low-moderate prospecting ability using that mode.
Y/W
If you're talking a salt water beach, forget using it in the water.....or even the wet sand IMO. It works fine in dry sand. The coil should be waterproof, but, the detector is not. The main problem using it in a salt environment is that it's a single frequency detector and will be very unstable at a venue like that. You need true multifrequency or a Pulse Induction detector to effectively hunt salt water areas. As for nugget hunting, there are much better detectors for doing that too. Ones that are designed for nugget hunting. The MXT is a good all-around detector, but, limited to dry land and targets bigger than sub gram size targets. It will find nuggets if they're big enough, but, even nuggets the size of a stud earring would be tough to find with an MXT.
If you do take it to the beach just run in salt mode, and the sensitivity low for stable operation. It will not have knock your socks off depth, but finds can be had.
