Superior Plastic Material: Crafted from premium plastic, this portable crack meter is exceptionally durable, ensuring long-lasting and reliable use. It also features a transparent measuring grid that allows for easy and accurate measurements. Accurate XY Axis Scale: The XY axis scale on this standard crack meter is calibrated in increments of ±1 mm (±0.4 inches), ensuring measurement accuracy. The small intervals of ±0.5 mm ensure precise measurements, allowing for reliable crack width determinations. Horizontal Range of ±20 mm and Vertical Range of ±10 mm (±0.38 inches): With a horizontal range of ±20 mm (±0.79 inches) and a vertical range of ±10 mm (±0.38 inches), this crack monitoring log accurately covers a wide range of measurements. Crack Monitoring: This crack meter with control scale serves as a crack monitoring device, offering a simple and innovative solution for tracking cracks over time. Perfect for monitoring cracks in walls and their changes during the measurement period. Accurate Crack Monitoring Tool: This practical crack meter is a reliable tool for accurately measuring and monitoring cracks in walls. It allows for precise monitoring of crack development, enabling timely interventions and necessary maintenance measures.