The ABM-40 and DR-2 mapping systems are designed to map duct and pipe  infrastructure with an ID range of 40mm to 75mm (1.5” to 3”). Ducts and pipes in this ID range are typically designated for telecom/data and power cables, pressure sewers and house connections.

Physically identical, the ABM-40 is equipped with MEMS technology and is suitable to map 300m (1000”) lengths between waypoints, the DR-2 is equipped with Fibre Optic Gyro technology and can map unlimited lengths with a recommended waypoint spacing of 1500m (5000’).