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3M™ Ball Markers are a durable, low-maintenance solution for accurately marking buried utility assets beneath backfill and non-metallic covers. These compact underground ball markers deliver long-term performance and work seamlessly with the 3M Dynatel Locator 7000 Series. Thanks to their self-levelling, spherical design and water-resistant polyethylene casing, 3M Ball Marker EMS and iD models ensure consistent location accuracy – even when installed under non-metallic lids or buried in difficult-to-reach areas.
3M Ball Marker – Underground Ball Marker for Flush-Mounted Utility Identification
This underground ball marker is ideal for locating CATV, gas, telephone, reclaimed water and power lines, particularly where flush-mounted facilities are involved. The self-aligning design ensures the internal antenna is always horizontal, offering reliable detection. Each 3M Ball Marker is completely passive or available in a programmable iD version, enabling storage of detailed asset information directly within the unit. With a 1.5 m detection range and chemical-resistant casing, these markers are built for dependable performance in challenging outdoor environments.
Self-aligning, spherical design for horizontal antenna orientation
Accurately marks buried lines under backfill or non-metallic covers
Water-resistant polyethylene shell resists harsh underground conditions
Programmable iD or passive options available for flexible data storage
Compatible with the 3M Dynatel Locator 7000 Series
Integrates with GIS and asset management platforms via unique serials
Reliable utility marking at depths up to 1.5 m (5 ft)
Suitable for gas, telephone, CATV, power, and wastewater applications
Operates in temperatures from -20°C to 50°C (-4°F to 122°F)
Supplied in cases of 30 for large-scale deployment
Whether you’re tracking buried networks across telecom, gas, or power sectors, 3M Ball Markers EMS provide the precision and durability needed to manage underground infrastructure with confidence. Their maintenance-free, self-levelling design ensures efficient installation and long-term asset traceability – even in heavily backfilled or restricted-access environments.
Effective underground asset management starts with tools you can trust. 3M’s locating and marking solutions – including Mini, Near-Surface, Full-Range, and Ball Markers – help professionals avoid costly errors and improve long-term infrastructure reliability. Backed by proven EMS technology, these markers make it easier than ever to track and protect your buried infrastructure.
For Additional Information, please consult the Technical Data Table or PDF File below.
*Technical Data subject to change without notice.
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| Application/Industry | Burial Depth (ft) |
|---|---|
| Application/IndustryGas, Telephone | Burial Depth (ft)3.937 Linear Foot, 4.921, 5 Linear Foot, 5 |
| Programmable/Passive | Smallest Saleable Unit |
| Programmable/PassiveProgrammable, Passive | Smallest Saleable UnitEach |
| DIMENSIONS AND CLASSIFICATIONS | |
| Overall Diameter (in) | Overall Diameter (cm) |
| Overall Diameter (in)4, 4.016 | Overall Diameter (cm)10.16, 10.2 |
| INDUSTRY SPECIFICATIONS | |
| Marker Type | Detection/Read Range (m) |
| Marker TypeBall Marker | Detection/Read Range (m)1.5 |
