... measurement: magnetite, hematite, magnetite with Va-Ti or Ag-Cu; metal mine with Fe, Co,Ni. 2, Resolution:1nT Main Specification ... : magnetite, hematite, magnetite with Va-Ti or Ag-CuMeasured indirectly: metal mine with Fe, Co, NiProbe for magnetic objectsDirection of measurement ... probe.7. The power supply box is connected to the wire, in order to avoid poor contact with PDA, please hold the PDA ...