1. Precise Monitoring: The monitor features a twopanel design with a transparent plate, enabling the cursor to move relative to the calibration scale. When a gap opens or closes, two nails are removed, and the thin wire cursor is recorded on the included gap log sheet, showcasing its ingenious design. 2. Precise Monitoring: With a horizontal range of 20 mm (0.79 inches) and a vertical range of 10 mm (0.38 inches), our gap monitor ensures accurate readings thanks to its 0.5 mm (0.02 inches) resolution. The XY axis scale of 1 mm (0.04 inches) and the scale wire contribute to precise monitoring. 3. Advantage of Portability: Achieve accurate placement without glue or complicated steps using our grout monitor with newly designed mounting posts. Its improved stability and userfriendly design make attaching two plates effortless and convenient. 4. Good Material: Ensure monitoring accuracy with our grout monitor. Its advanced technology delivers clear results. Made from quality ABS and acrylic materials, it guarantees durability and stability, while the design ensures easy data reading.