Corner Crack Monitor - Durable acrylic material: Made with high-quality acrylic, the Corner Crack Monitor is durable, robust, smooth, wear-resistant, and not easily broken. - With measuring grid: Features a high-clarity acrylic sheet and an easy-to-read measurement scale for precise readings. - Crack monitoring: An simple analog crack monitoring device and precision instrument to observe horizontal or vertical movement of cracks on a single plane. - Track development over time: Use to monitor cracks in walls and measure their progression over time for informed maintenance. - Practical attributes: designed for indoor wall monitoring; compact and easy to use on typical wall surfaces. - Use scenarios: - Construction and renovation projects to track crack development in walls. - Ongoing building maintenance to verify crack stability over time. - Post-event or post-alteration inspections to assess movement and plan repairs.