What it does and why you need it Provides dependable, manual 2D crack monitoring to record and follow crack movement over time without power or software. Useful when you need simple, repeatable measurements to document horizontal and vertical displacement and verify whether a crack is stable or progressing. Key features and benefits Clear measurement grid on a quality acrylic sheet: precision markings make repeat readings fast and reliable so measurements are consistent between inspections. Tracks horizontal and vertical movement: the device monitors displacement in both axes for complete 2D observation of crack behavior. Recordonchart system: provides a visual record of movement for comparison over time without digital complexity. Two removable pins for flexibility: secure the device to different surfaces or relocate pins as needed for repeatable placement and longterm monitoring. Cursor that shows movement: an easytoread cursor highlights shifts between inspections so small changes are visible. No electronics or calibration required: simple, mechanical operation minimizes maintenance and avoids compatibility issues with power or software. Materials and performance Constructed from a clear, quality acrylic sheet with a printed measurement grid for durability and accurate markings. Designed for consistent, repeatable readings and longterm observation of crack progression. Typical applications Interior and exterior wall cracks: monitor plaster, drywall, brick or masonry cracks in homes and commercial buildings to determine whether is urgent. Foundations and retaining walls: track settlement or movement over weeks and months to support maintenance decisions. Historic buildings and concrete structures: provide a noninvasive way to document structural changes during conservation or construction nearby. How it fits into inspections (quick overview) Mount the device across the crack using the removable pins, align the grid, record the initial chart position, and recheck at subsequent inspections. The cursor and charted records make it simple to compare readings and identify any movement. This device is intended to give clear, repeatable, manual measurements of crack movement so you can document changes over time and make informed decisions about inspection frequency and .