Mashin Gauge Monitor, Precise Gauge Inspection Tool, Tell-Tale Measuring Tool for the Standard and Corner Cracks

❀Smooth and Wear-Resistant: Made of high-quality acrylic material, our Crack Gauge Monitor is durable, sturdy, smooth, wear-resistant, and not easy to break. ❀Clear and Precise: Crack Monitor is designed with a highly clear acrylic sheet and an easy-to-read measurement grid, so it is clear and precise. It is very practical. ❀Monitor Horizontal or Vertical Movement: As a precision instrument, our Corner Crack Monitor can be used to monitor the horizontal or vertical movement of cracks a plane. ❀Convenient for You: Because our Crack Monitoring Gauge can monitor cracks in walls and how they evolve measured, it is very practical and convenient for you. ❀Clever Design: Crack Measurement Tool consists of two boards that overlap for part of their length. The bottom plate is calibrated in millimeters, and the top plate is transparent and marked with a thin line cursor in the shape of a cross.