Operating principle: VLF single frequency

this pick can handle large holes with ease

we can walk through the frequency and coil tradeoffs before you commit

Walt's Welding

48 total settings

Minelab Ferrite Ground Balance Accessory (GPZ 7000) laser-cut-hexagon Operating principle: VLF single frequencyMinelab Ferrite GPZ 7000 Metal Detector Ground Balance Accessory Minelab Ferrite GPZ 7000 Metal Detector Ground Balance Accessory To achieve optimum ground balance, the GPZ 7000 requires as much different data about the ground as possible, especially variations in soil mineralization. Ground balancing using a ferrite means that less soil needs to be covered during the initial ground balance period because the ferrite artificially adds very useful data