The EM31 maps geological variations, groundwater contaminants or any subsurface feature associated with changes in the ground conductivity using a patented electromagnetic inductive technique that makes the measurements without electrodes or ground contact. With this inductive method, surveys can be carried out under most geological conditions including those of high surface resistivity such as sand, gravel and asphalt.

The EM31 MarkII comes with its own on-board Archer field PC.  No need for a separate Allego unit.

Benefits:

• Contamination Surveys
• Saline intrusion surveys
• Location of buried tanks and drums
• Mineral deposit surveys