For the measurement of surface movement.

A portable device designed to measure the relative distance between reference anchors fixed to an excavation or structure.

Used for the measurement of deformation of excavations; Radial movements and convergence of tunnels, shafts, linings and caverns; Displacement of retaining walls, cuttings, bridge piers arches and abutments; Surface measurement of slope stability.

Features:

• Rapid one-man operation
• Applicable in any orientation
• Rugged, simple design
• High accuracy and reliability
• Supplied with robust carrying case
• Digital and manual versions