Fortuna M3 is a selective IB metal detector with metal recognition, working on the principle of induction balance. Metal discrimination - numerical and columnar display of VDI, as in more expensive devices, such as MINELAB, FISHER, XP Metal Detectors, GARRETT (different objects and metals have their own digital value).
The device is multi-frequency, you can use different coils with different frequencies. The ability to mask, exclude unwanted alloy from the search. For example, exclude iron.
