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Crack Gage is designed to monitor the crack on the surface of concrete structures, rock, bridges, pavement slabs, etc. It is composed of 2 plastic plates and each plate has cross hair and grid. Crack affects to the structure of old age and the construction of the process.


  • Monitor crack on the surface of concrete and arch dams.
  • Monitor crack of decrepit building.
  • Monitor crack propagation of concrete structures

Tell Tale | 隙縫尺

  • Range : ±20mm (Right & Left) ±10mm (Up & Down)

    Resolution : 1mm

    Dimension : 32 x 102 x 5mm

    Material : Poly carbonate

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