I also employed Each and every detector for several hours in a variety of situations, like in a grassy park and on the Seashore, in equally dry sand and moist sand, and below several inches of surf. The GPZ 7000 has an exceptionally sensitive discrimination purpose that will help you https://www.netsalus.net/read-blog/13690_unlock-hidden-treasures-with-metal-detector-and-gold-detector.html