The 3M™ Ball Marker makes the job of precisely locating underground facilities easier. The 3M EMS Ball Markers have a unique self-levelling design which provides an accurate, horizontal position regardless of how the ball is placed in the ground. Locatable range of up to 1.8 metres from marker to locator, and can be accurately located using a 3M™ Dynatel™ Locator.
The 1408-XR Ball Markers are passive (not programmable) markers used for General Purpose and Reclaimed Water applications. They are purple in colour.