Heavy Duty Building Crack Monitor For Concrete Masonry And Stucco With Polar Magnitude Grid 20 mm Horizontal And 10 mm Vertical Range Includes Crack Progress Chart And Serial ID For Precise Foundation Tracking

Heavy-Duty Crack Monitor (1 Monitor) for Concrete, Masonry & Stucco
✔️ Polar magnitude grid: ±20 mm horizontal (±0.79"), ±10 mm vertical (±0.38"); serial ID

The CRACKMON 4020A is a heavy-duty crack monitor designed to measure displacement in foundations, concrete, stucco, masonry, plaster, wood and steel structures. Ideal for restoration, seismic retrofitting, or forensic analysis of differential settlement in buildings and sites.

✅ Includes (1) CRACKMON 4020A Crack Monitor with installation instructions and tracking sheet
✅ Extreme durability: 50% thicker proprietary polymer (4.5 mm) vs classic (3 mm)
✅ 2D-plus polar magnitude and X-Y displacement grid with TickPoints for accuracy
✅ Unique serial ID for engineering and forensic traceability
✅ Integrated GeoQR technology for online instructions and easy re-ordering using a smartphone
✅ Flexible mounting for #8(M4) or #6(M3.5) tamper-resistant fasteners and epoxy (sold separately)
✅ Optional impact-absorbing thermoplastic drilling guide
✅ Engineered and Made in the USA

💡 What is a crack monitor used for in foundation tracking and forensic documentation?

It helps professionals quantify movement over time for safety, compliance, and reporting.

- Accurate displacement measurement for foundations and structures - Forensic traceability with unique serial IDs for reports - GeoQR-enabled access to online instructions and re-ordering