Mountlaser 20Pcs Standard Crack Monitor Tell-Tale, Acrylic Crack Gauge

Mountlaser

【Precision 2D Crack Monitoring】Features ±20mm horizontal and ±10mm vertical measuring range with clear 0.5mm scale markings, allowing accurate tracking of crack widening and wall displacement over time for structural safety checks. 【Durable & Weatherproof Acrylic Construction】Made of high-quality transparent acrylic, the crack gauge is impact-resistant, UV-stable and suitable for long-term indoor and outdoor use on walls, concrete, foundations and buildings. 【Complete Installation Kit Included】Comes with stainless steel screws for quick and secure mounting across cracks. The double-plate design moves independently to record even subtle structural changes without interference. 【Easy-to-Read & Long-Term Tracking】The clear grid and numbered scale let you easily record initial readings and compare changes later, ideal for homeowners, builders and surveyors to monitor structural cracks before/after renovation or settlement. 【Versatile Application Scenarios】Suitable for monitoring cracks in walls, ceilings, floors, foundations and masonry. Perfect for structural safety inspections, settlement monitoring, renovation works and property condition surveys., Manufacturer: Mountlaser