Precision you can rely on The grid on clear acrylic provides precise markings to support detailed crack evaluation and consistent monitoring. Simple, proven tracking An uncomplicated analog mechanism reliably observes horizontal and vertical displacements with dependable efficiency. Flexible data recording Two removable pins allow for adjustable setup, while the chart and cursor clearly show movement for consistent crack observation. Longterm wall analysis Manual 2D crack monitoring measures wall cracks consistently over time, ensuring accurate data collection for the future. Use scenarios Construction and renovation projects where it is important to monitor wall cracks in concrete or masonry during work and after changes. After seismic events or significant loading, to track crack growth and displacement over time for safety assessments. Preservation or ongoing maintenance of historic buildings where long term crack movement must be documented for repairs and conservation decisions.