Our Advanced Resistivity Scanner (ARS) allows you to look for metals with discrimination (gold, copper, silver, iron), gold veins, minerals, caves/voids and even water. This is achieved through resistivity analysis. Resistivity is an intrinsic property that quantifies how strongly a given material opposes the flow of electric current. This technique is used on construction and archeology. The ARS will send electrical current in the soil thanks to 2 or 4 probes for theorically depth up to 200 met...