OmniMarker II Underground Utility Marker Ball – The OmniMarker II electronic marker ball for underground location provides an improved method to electronically mark and locate buried underground facilities. The environmentally friendly OmniMarker II buried markers do not contain liquids or hazardous chemicals, instead, they contain a large gimballed coil that automatically orients itself horizontally when … <a href="https://www.tempocom.com/products/omnimarker-ii/">Continued</a>