3M™ Full-Range Markers provide an accurate, convenient, long lasting method of marking underground facilities.
Full Range markers are ideally suited for marking the location of utilities buried at a deep distance (8 feet or 2.4 meters)*. Passive full range markers help provide accurate identification of buried water lines, helping to reduce the risk of accidently excavating other buried facilities. All markers function without the need for an external power source. Their water resistant polyethylene shells are impervious to minerals, chemicals and the temperature extremes normally found underground. An iD version is available which allows for the storage of customer specific information about the underground asset. *Depth range may vary on "E" (export) models - refer to product specifications.