Corner Crack Monitor - Avongard Corner Tell-Tale

1 - 9
10 - 24
25 - 99
100 or more
All prices USD
Availability: In Stock
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Product Details

Avongard Corner Tell-Tale Crack Monitor

Use corner crack monitors in pairs to monitor three-dimensional movement

Monitors horizontal and vertical movement across a crack in a corner.

  • The Tell-Tale is hinged enabling it to be used in internal corners of angles between 70 and 180 degrees.
  • Monitors both internal and external corners.
  • Avongard Tell-Tales are precision gauges that consist of two plates which overlap for a part of their length. The bottom plate is calibrated in millimeters and the top plate is transparent and marked with a hairline cursor in the form of a cross.
  • Fix using Screws and Adhesive (not included but available as accessories).
  • Supplied with full instructions and Crack Record Sheet. 

Crack Monitoring Applications:

  • Use singularly to monitor two-dimensional movement
  • Use in pairs to monitor-three-dimensional movement
  • Re-configure the crack monitor components to monitor cracks between ceilings and walls or floors and walls.

Fixing Instructions:

  1. Use the screws and nuts supplied to fix the adapter to the Tell-Tale. 

  2. Fix the Tell-Tale across the crack with screws/plugs and adhesive (sold separately)

  3. Remove the four pre-set pegs. If the crack opens or closes the cursor moves relative to the calibration scale and can be recorded on the record sheet included on all orders.




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