Geophysical Survey Systems, Inc. (GSSI) is the world leader in the development of ground penetrating radar. With cutting-edge products designed to address the most challenging applications, the GSSI name has become synonymous with accuracy, quality and reliability.GSSI's leadership in subsurface imaging equipment began with the introduction of the first commercial ground penetrating radar system in 1974. For over 50 years, GSSI has consistently led the industry with a series of "firsts" including the first digital GPR system, the first commercially available software package designed to process radar data and the first high-frequency GPR system specifically designed to scan concrete.Today, GSSI offers the market's broadest range of ground penetrating radar and electromagnetic induction equipment - covering a host of applications from archaeology and forensics, geology and environmental, utility detection and concrete inspection, to transportation infrastructure condition assessment.Thank you for your interest in GSSI.