The RIGID SeekTech SR-20 utility line locator from Ridge Tool Co. uses a combination of mul-ti-directional antennas, a map- ping display and processing mechanism to provide users with information to locate underground utilities. Accompanied by audible signals, its mapping display shows target line direction and changes in direction; left-right guidance arrows; signal strength; and a proximity number that increases as distance to the target decreases.

Ridge Tool Co., Card No. 173