Crack monitoring recorder, standard crack indicator for corners

1. FEATURES: Composed of two partially overlapping plates. The lower plate is graduated in millimeters, and the transparent upper plate has a crosshair cursor. 2. SCALE: Graduation of ±1 mm (±0.04 inch) on the X and Y axes, with a resolution of ±0.5 mm (±0.02 inch). Horizontal measuring range: ±20 mm (±0.79 inch); vertical range: ±10 mm (±0.38 inch). 3. EASY TO USE: The redesigned mounting bracket allows for easy assembly of the two plates without glue or complex assembly, for more convenient and stable use. 4. PREMIUM MATERIALS: Made of high-quality ABS and acrylic, this crack monitoring device offers exceptional durability and stability. The choice of materials ensures easy data reading and clear monitoring results. 5. FUNCTION: This standard crack detector for building walls allows you to monitor cracks and their evolution over time, making it a practical and accurate measuring tool. Specifications: Item Type: Crack Detector; Materials: ABS, Acrylic; Weight: Approx. 34 g; Package Contents: 1 x Crack Detector (2 small pieces); 4 x Expansion Anchors; 4 x Screws; 1 x User Manual