The Omni Marker™ electronic marker provides an improved method to electronically mark and locate underground facilities. Unlike other marking devices that use only a single coil, the Omni Marker electronic marker contains three orthogonally tuned circuits. When excited by any standard marker locator, these passive circuits produce a uniform, spherical RF field in every direction. The Omni Marker electronic marker’s unique, patented design allows it to offer benefits that are superior to any other electronic marking system available today.