1. Precise Measurement Scale: Equipped with XY axes, this device features graduations of ±1 mm (±0.04') and a resolution of ±0.5 mm (±0.02'). It has a horizontal range of ±20 mm (±0.79') and a vertical range of ±10 mm (±0.38'), enabling comprehensive monitoring. 2. Advanced Functionality: This standard wall crack monitor is designed to track wall cracks and their progression over time. It serves as a precise tool for monitoring structural integrity and features overlapping plates for detailed measurements. 3. UserFriendly Installation: The crack monitor includes redesigned mounting posts that securely connect the two panels. This design eliminates the need for adhesive, simplifying the installation process while enhancing both usability and stability. 4. Innovative Design: The lower plate, composed of overlapping panels, is meticulously calibrated to millimeter precision, while the upper plate is transparent and marked with precise crosshairs for accurate monitoring.