While working with the Minelab Pro-Find 35 in saltwater it’s necessary to reduce sensitivity by using the +/- buttons. The junior Pro-Find 15 doesn’t have these ones, however. So, isn’t it possible to use the junior in saltwater? Certainly not. And this is primarily because of the fact that the probe should be able to withstand submersion. The Pro-Find 35 is submersible whereas the Pro-Find 15 isn’t. Here’s an interesting and useful test: how the Minelab Pro-Find 35 works in dry and wet sand, how it behaves when submerged in water, how buoyant it is.