• 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 milli-metres 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.
-AVONGARD
-Standard Tell-Tale
-Crack Monitoring
