Mountlaser Transparent 3Pcs Adjustable Acrylic Wall Crack Monitor Gauge

Mountlaser

【Precision Crosshair Calibrated Scale for Crack Displacement Tracking】Equipped with precise red crosshair reticle and clear bilateral mm graduations, this gauge accurately records horizontal and vertical crack expansion, helping you track subtle structural changes on walls and concrete buildings over long periods. 【Thickened High Transparency Acrylic Construction】Made of sturdy thickened acrylic sheet, the material is rigid yet bendable for corner installation, waterproof, wear-resistant and not easy to yellow or deform under long-term indoor and outdoor environmental exposure. 【Reserved Screw Mounting Holes for Permanent Fixed Installation】Pre-cut elongated screw mounting slots on both ends allow secure fastening onto wall surfaces with screws. The slotted hole design offers slight adjustment space during installation for perfect alignment against cracks. 【Essential Tool for Building Structural Safety Inspection】Designed for architects, building surveyors, construction technicians and property maintenance staff, widely used to monitor wall cracks, concrete shrinkage gaps and structural displacement to judge building safety conditions., Weight: 0.110231131 Pounds, Manufacturer: Mountlaser