The 3M ball marker’s unique self-leveling design ensures the marker is always in an accurate, horizontal position regardless of how it is placed into the ground. The addition of the 3M-iD markers provides additional functionality by enabling facility data to be stored in the marker to ensure positive identification of facilities.

The ball marker is buried over key facilities during construction or maintenance. Later, the marker is easily and accurately located using a 3M™ Dynatel™ Locator.

The EMS markers use a passive technology that doesn’t require energy source for it’s functionality. The 3M markers are design for a long lasting life once positioned underground.

Features:
Accurate even in congested areas – Helps eliminate mislocates
Underground marker – Protected from damage from above-ground environment
Durable – Long-lasting passive antenna encased in waterproof shell helps identify underground facilities for years to come
Frequency- and color-coded Helps identify specific utility
Easy to Use – Minimal training
RFiD capability – Positive identification using facility information

Physical Specifications:
Size 4″ diameter sphere (10.4 cm diameter)
Weight Net: 0.7 lb. (0.35 kg)/ Shipping: 24 lb. (10.4 kg)
Packaging 30 per carton
3M iD Markers Read Range With a ‘U’ model (U.S.) locator: 5 ft. (1.5 m)
With a ‘E’ model (Export, CE) locator:
1.2 m (Tel, Gas, WW, Comm)/1.0 m (Pwr, Wtr)
3M Passive Markers Detection Range 5 ft (1.5 m)

Environmental Specifications:
Operating Temperature-4°F to 122°F (-20°C to 50°C)
Storage Temperature-40°F to 158°F (-40°C to 70°C