Metrica Crack Monitoring Gauge from Italy
Crack monitoring gauges are one of the simplest way to monitor movements in building and structures. The basic tell-tale crack monitoring ruler monitors horizontal and vertical movement across a crack on a flat surface.
The crack monitor device is made of polycarbonate. Measuring movements: horizontal scale +/- 20mm, Vertical scale +/- 10mm Reading accuracy of +/- 0.5 mm on grid.
Fix using screws and adhesive (not included)
Supplied with Crack Monitoring Record Sheet
Please feel free to download a complimentary spare Standard Tell Tale Crack Monitoring Record Sheet