Tape Extensometer

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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.


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