Every Douglas Mining sensor is built around one well-understood piece of physics, so the result you see in the field is one you can trust.

Magnetometry
A Hall effect magnetometer outputs a voltage proportional to the magnetic field around it, and it knows which way the field points. Scan an area and anything that disturbs the field stands out as an outlier: ore bodies, buried metal, explosive devices, or the empty space of a void.

Resistivity
Push a current through the ground and measure how hard it has to work. A stone foundation resists the flow; the damp organic fill of a midden conducts it more easily than the soil around it. Take enough readings at the surface and electrical resistivity tomography turns them into a cross-section of what is underneath, drawn like a topographic map.

We build to a field standard. Compact enough to carry in, rugged enough to survive the trip, quick to set up and quick to learn. Units share parts wherever they can, so a failure in the field is fixed with a swap, not a shipment, and the team stays on mission.