The best trail detectors are the rover C4

The Rover C4 gold imaging system is the latest generation of metal detectors and 3D ground scanning devices. The device includes an improved technology from the well-established German company OKM to detect metals, gold and antiquities.
The Rover C4 uses special measuring sensors to perform a detailed spatial survey of the ground in the search area below it
. The survey data can be viewed on any computer that has the analytical software attached to the device installed. The Rover C4 is the best