I used to have one of the hand held Falcons. They detect tiny pieces of metal and are better for prospecting than other pin pointers that I have tried. I thought I might use it to check a pan or crevice before going through the paces of working it. While it was nice to know something might be there, I ended up working the pan or crevice with equal enthusiasm anyway, so in the end I stopped using it for that. It is easy to tune, so once you get the hang of it, the little device works. I have heard other people rave about them, but it was not something that I really needed in my kit for what I did. I ended up using it as a coin/jewelry pinpointer when I worked in grass parks until I broke it.