Hi, I currently have an exterra 705 which is a brilliant detector for it designed for however what it is not so good at is wet sand and shallow water beach work. Apparently due to the frequency set up and high conductivity of wet sand etc. I was thinking I might buy a second detector specifically for wet sand beach work, one you can submerge the coil without and problems. I'm asking on this site as I think the AT Pro maybe the way to go or if anyone has other suggestions I would appreciate them. Looking at spending between $700 and $1200. Aaron