It is a spherical underground marker with a pre-programmed ID number. It is suitable for narrower excavations.

Its greatest advantage is that it can be placed underground in any position. It is the ideal solution for marking all strategic points of the utility network. The robust outer PE casing provides it with high resistance to mechanical damage and gives it protection even under the harsdest conditions. Two holes on the sides of the marker cover are designed for possible attachment of the MAR 100-LQ Smart to the cable or pipe by means of fixing strips.