3M™ EMS iD Extended-Range Ball Marker is specially designed for locating flush-mounted facilities. It is affixed to the underside of non-metallic lids or covers over flush-mounted facilities. Supported by RFID technology, this marker offers positive identification of facilities.
3M™ EMS iD Extended-Range Ball Marker provides an effective way of marking underground facility lines. It withstands a temperature range of -4 to 122 degrees F (-20 to 50 degrees C). It is programmable to store customer-specific data to ensure positive identification of facilities. This ball marker with a water-resistant polyethylene shell does not react with any chemicals or minerals. The easy-to-use marker system features 4X memory and has an extended detection range of 5 ft. This ball marker effectively operates without the need for any external power source.