Here is some information on Minelabs new ProFind 15 & 35. A couple of interesting features is that it can distinguish between ferrous and Nonferrous. It also has some new technology called DIF (Detector Interference Free). Price 35 $129 and 15 $99
http://www.minelab.com/usa/go-minela...-hits-the-spot
https://youtu.be/6qw7DL94nkQ