If you have a chance. Ask him which one he has and let me know please. I would be forever grateful.My neighbor has a health issue that causes him serious issues with heat. This makes him do all his detecting in the winter, and he only detects old swimming holes. I don't recall the name on his detector but I do know it is completely submersible. Seeing some of the stuff he has found, it appears he knows what he is doing. If I was looking for a new one, the coil at least would be water proof, but the entire system would be even better.