The CZ-3D Metal Detector from Fisher Labs is their classic metal detector. it is designed and engineered to provide maximum success on old coins, retaining the best possible ratio of good targets vs. trash targets. In older sites, where aluminum trash is minimum, the CZ-3D will give exceptional performance on older coins. Simply select the "Enhanced" mode switch. It it excels in deep seeking for coins and jewelry with no special or lengthy programming required, just flip the switch and see what you’ve been missing.
The CZ3D has optional search coils in 5" and 10.5" sizes. These and more accessories are available from Prospect For Treasure.