Metrica Square Crack Monitoring Gauge 10/20MM

Metrica Angle Crack Monitoring Gauge 

Crack monitoring gauges are one of the simplest ways 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. 

Features: 

• 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