Underground markers are available in various styles. Electronic Ball style which is buried below the surface and detected with electronic equipment prior to digging.  Poly-Dome Markers allow a visual identification of the utility buried below. Poly-Dome Markers typically provide some type of contact information depending on the requirements.  

Poly-Dome™ - Top Hat Test Station

The Poly-Dome Test Station and Top Hat Test Station are perfectly suited for above ground testing and monitoring of cathodic protection. Available in Standard or Custom Colors and made from durable UV treated polyethylene. Station includes:...

Poly-Dome™ Markers

Use the Poly-Dome Marker™ to provide 360° visibility to identify pipelines, fiber optic cables, and other underground utilities. Both the Poly-Dome Marker and posts are made from durable high-density UV treated polyethylene. Because...

3M™ EMS Ball Marker

Marking points of interestUnlike surface features, maps and other methods of recording position, the 3M™Marker is a constant point of reference you can depend on. 3M™ markers: • Operate in all soil types; under asphalt; cement;...