AVONGARD Corner Tell-Tale
The Avongard Corner Tell-Tale 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 millimetres 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.
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