2 Pcs Crack Monitoring Record, Gauge Monitor with Record Sheets ±10mm Vertical Range ±20mm Horizontal Manual Tracking for Wall Deformation Measurement

Acrylic Material Construction: This transparent acrylic crack caliper is made of acrylic material, the transparent body allows clear visibility of wall cracks beneath the scale and straightforward visual alignment for tracking shifts in plaster, brick or concrete surfaces during each inspection Dual Axis XY Scale for Crack Movement: Integrated X and Y axis grid provides horizontal and vertical measurement with fine resolution, this standard crack monitor tell-tale supports structural assessment and consistent recording of wall deformation over successive observation periods Mechanical Tell-Tale Recording: Mechanical tell-tale design records wall movement without electronic components, the crosshair cursor moves along with crack opening or shifting, this tell tale crack monitor offers easy observation and manual documentation for ongoing monitoring work Versatile Wall & Corner Monitoring: Suitable for internal and external use on walls, ceilings and corners, this wall crack monitor works for building inspections, property surveys, structural engineering checks and renovation projects, with record sheets included for logging each reading Complete Installation Kit Included: Supplied with expansion screws, crack record sheets and instructions for straightforward mounting, the acrylic construction keeps consistent positioning for long-term crack observation, this crack monitor can be fixed at multiple wall positions for parallel tracking