I received a call from Carl saying he lost his ring . After getting the location ( deep sand, Ocean beach) and answering a few questions on how he lost it, we were sure it was within a 100 sq ft area. He had searched the night before, then called me this morning. I got there around noon and using my Fisher CZ -20, found it within minutes. Carl and his wife were down from Canada visiting his parents in Kennebunk Me. and leaving the day after he called. I was glad I could help the young couple.