I have a new makro gold. Bought for gold nuggets. Detects anything less nuggets gold. Not to the big ones as the nail size does not make any sound. The pepites are made of thin gold sheets in many layers. The pepites are of pure gold. I talked to the factory. They said they would contact me. This has not happened. A bad turkish detector . I lose 500 euros on a useless thing . Detects any metal less gold nuggets.