Displacement Transducers

Tell-tale Crack Monitor

Tell-Tales consist of two plates which overlap for part of their length. One plate is calibrated in millimetres and the overlapping plate is transparent and marked with a hairline cursor. As the crack width opens or closes, one plate moves relative to the other and the relationship of the cursor to the scale represents the amount of movement occurring.

  1. Data Sheet
  2. Manual


Used for the measuring widths of active cracks.


  • Simple to read
  • Easy installation
  • Low cost

LSS Consulting Engineers
No.13, 1st East 10m Aflaknama Sq., Zafaranieh Tabriz, IRAN
Tel: +98.41.33335117

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