Fisher Research Labs CZ-3D Multi-Frequency VLF Metal Detector with 8" Waterproof Concentric Round Coil, 5kHz & 15kHz Operating Frequency

The CZ-3D is an extremely advanced and sophisticated instrument. It is maximized for a very specific function - finding & properly identifying older era coins at older sites. Simply select the "enhance mode" with the utilization of the "salt / enhance" switch to find more rare coins! The CZ-3D was designed to find more good metals such as brass, bronze, copper, silver, and certain gold: reporting it as a high tone. In addition, a fourth tone has been added to distinguish between the midtone heard on round & square "pull tabs" and foil - this enhances your ability to recover gold jewelry. With this detector, performance and ID can be further enhanced by a slower coil sweep speed, more so than previous CZ models, especially in trashy areas. Read the instruction manual thoroughly, practice often and you will be ready for some exciting treasure hunting. In the meantime... Happy Hunting!