... , hematite, magnetite with Va-Ti or Ag-CuMeasured indirectly: metal mine with Fe, Co, NiProbe for magnetic objectsDirection of measurement: vertical ... secondSystem power dissipation: <70mAPower Supply: powerful Li-battery, which can be charged up , 15000mATemp. Range: -10°C ~ +50°C, inside ... set up the base(4) field measurement(5) turn off mine iron ore and metal detector prospecting magnetometer