3M™ EMS 4" Extended Range 5` Ball Marker. Extended Range Ball Markers have a self-leveling design insuring accurate, horizontal position regardless of how it is placed in the ground and making the job of precisely locating underground power facilities easier.

• Application/Industry: Utilities. Depth: 5 feet (1.5m)
• Marker Dimension: (cm) 10.2 cm D
• Marker Dimension: (inch) 4 inch Diameter
• Marker Type: Ball
• Programmable:/Passive Programmable.

The 4" Ball Marker is buried directly over key underground locations.
When the job requires access to that facility again, it can be located using a 3M™ 1264 EMS II Marker Locator, or a 3M™ Dynatel™ 2200 Series Locator equipped with a 3M™ Dynatel™ 2205/2206 EMS Marker Locating Accessory.
The 1264 locator transmits an RF signal to the buried marker. The marker returns the signal to the locator, indicating the marker’s exact position. The compact electronic locator provides both a visual reading and a tone.
Use of the locator and markers requires only a few minutes of training.
The 4" Ball Marker’s width enables the marker to be placed in a standard 4" trench without additional digging.
Eyelets on the ball marker allow the installer to attach the marker to a pipe, conduit, or splice case with a tie-down strap (optional), if desired.

Built for durability,The 4" Ball Marker contains a passive-tuned antenna, molded inside a plastic disk, which is free-floating inside a waterproof, polyethylene shell. The shell is impervious to minerals, chemicals and temperature extremes normally
found in underground plant environments.