I have been following this detector on forums for the last two years and I am disappointed that it is limited to 1 meter of water resistance.
Even stranger to me is that $ 300 detectors can go up to a few meters deep. Couldn't the electronics be packed into something like a Garrett Sea hunter?
My dream has faded about this detector, I also live in the swamp of numerous beaches without ocean tides, where most of the jewelry is 1-3 meters deep, so I give up buying this machine.