Avonguard - Tell Tale - Standard

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This Avongard Tell-Tale crack monitoring gauge provides monitoring for both horizontal and vertical movement across a crack on a flat surface.

Features a precision silk screened grid, detailing both positive and negative graduations to an accuracy of +/- 1.0mm and by interpolation to +/-0.5mm.

A fine red crosshair allows for accurate estimation.

Avongard crack recording sheets are supplied with each unit to allow accurate recording of movement over a period of time.