Linestorm Corner Tell Tale Crack Monitor for Crack Monitoring - Crack Width

Features: High-quality plastic, easy-to-read measurement grid. ±1mm (±0.04") check mark on XY; ±0.5mm (±0.02") difference. ±20mm (±0.79") horizontal and ±10mm (±0.38") vertical range. Crack monitor such as crack monitor, simple and fresh analog crack monitor. The Crack Monitoring Scale is used to monitor cracks in walls and how they evolve over the measurement time. Specification: material: plastic The package includes: 2 Set Crack Monitor 8 Set Screws Notice: Please allow 1-3cm error due to manual measurement. Make sure you don't mind before bidding. Due to differences between different monitors, the image may not reflect the actual color of the item.