Campus Geophysical Instruments was founded in 1988 by Dr. Ron Barker and Professor Don Griffiths (both of the University of Birmingham) initally to manufacture cables for use in resistivity sounding applications, as manufacturers at that time had no suitable products to offer. This saw the introduction of the BSG-128 and BSG-256 offset sounding cables which became a standard of offset sounding and widely used within geophysics by both academia and industry.

Progression saw the manufacture and production of resistivity meters at their site in Birmingham close to the University, namely the Geopulse which was the first system to offer automated sounding and imaging, by way of a laptop computer. Imaging is quite simple in that it consists of multiple soundings of fixed spacing over a fixed cable length with 25 or 50 equally spaced electrodes. By way of a computer program, a selection of electrode spacing's could be selected building up a pseudo section of apparent resistivity, offering superior date collection rates and quality.

The next step in the history saw the purchase of Campus by Barbara & Norman Bell in May 1999. With this, the company was renamed Campus International Products Ltd and production was relocated to its new base in Dunstable north of London.

At this time several important changes were introduced to the equipment. The successor to the Geopulse, the TIGRE was completed, offering 32, 64 and 128 electrode systems. Additionally the DOS program used to control the Geopulse was replaced by ImagerPro, a Windows based program developed for Campus, which offered real-time on screen display of the resistivity in a colour sudosection format providing instant visual confirmation of data quality. Further details are outlined on following pages.