Concrete Crack Monitor Crack Monitoring Record Tool Crack Measuring Instrument Horizontal Vertical Measurement Device for Wall

Battery Included : No High-concerned chemical : None Certification : weee DIY Supplies : Woodworking Model Number : gap gauge Origin : Mainland China Material : Plastic Measurement Range : 0-80mm Crack Measuring Instrument : Crack Monitoring Record Tool usage_scenarios : construction size : about 10x3x0.9cm/3.94x1.18x0.35 inches Application : Can be used to monitor wall deformation/cracks