3M Near Surface Marker

3M Near Surface Marker

The 3M™ Near-Surface Marker provides an accurate, convenient, long-lasting method of marking underground and street-access facilities. Its size and shape allow for easy installation in asphalt, concrete or dirt, without extensive digging or drilling. The Near-Surface Marker is three inches long and 0.78 inches in diameter, and has a range of up to three feet (0.9 m) from marker to locator.

The addition of the new 3M-iD markers provides additional functionality by enabling facility data to be stored in the marker. The pre-programmed unique serial number integrates with back office mapping and GIS systems when used for mapping new and legacy assets such as valves, handholes, manholes and other points of special interest.

When buried in a vertical position, the Near-Surface Marker can be accurately located using a 3M™ Dynatel™ Locator. The locator transmits an RF signal to the buried marker. The marker returns the signal to the locator, indicating the marker’s exact position, while the locator provides both a visual reading and an audible tone.

Data Sheet

User Manual