Ervin M. Kraemer is the authority on the seismoelectric GF6 technology, offering 17 years of experience in the area of seismoelectric data collection, data interpretation, design, and manufacturing of the system. He has trained more than 100 individuals, from geophysicists and drilling professionals to laymen from around the world, on this specific technology. More than 100 seismoelectric units are being successfully operated more than 23 countries.