Crack Gauge Monitor Durable acrylic construction Built from sturdy acrylic material to deliver long lasting durability. It resists wear and tear and is not prone to breaking or cracking under normal usage. Clear and precise measurement Features a clear acrylic sheet with an easy to read measurement grid. It provides accurate readings to help you track deformations and cracks on walls with ease. Easy installation Designed for straightforward setup. Fix it with two adapters, align it using the crack center crosshair, and secure to the wall with screws and expansion screws for a hassle installation. Accurate displacement measurement Includes a measuring scale and crosshairs to display displacements in two directions bottom and left right. You can rely on precise measurements to monitor changes in cracks or deformations. Use scenarios construction or renovation projects Install on wall surfaces to monitor crack development from curing through finish, enabling early detection of problematic movement. Retrofitting and existing buildings Use to track slow settlements or movement in walls after upgrades or weather events, supporting proactive maintenance decisions. Post event structural monitoring Deploy after seismic activity or extreme conditions to assess any deformation and monitor progression over time. Attributes and compatibility Material: acrylic Function: wall crack and deformation monitoring Measurement: two directional displacement ( bottom and left right) Installation: uses two adapters, crack center crosshair, screws and expansion screws Compatibility: suitable for mounting on typical wall surfaces with standard fixings This description preserves the original product's functions and specifications while presenting clear, customer friendly benefits and practical usage situations.