1. INNOVATIVE FEATURES By using a transparent plate and double plates, the sophisticated design of our grout monitor allows precise tracking of opening and closing joints. Accurate data is logged on the included log sheet via the thin wire cursor and the removal of two nails. 2. Increase Your Monitoring Our grout monitor ensures precise measurements with a resolution of 0.5 mm (0.02 inches), offering a horizontal range of 20 mm (0.79 inches) and a vertical range of 10 mm (0.38 inches). It features an XY axis scale of 1 mm (0.04 inches) and a scale wire for accuracy. 3. EASY TO USE Thanks to its improved stability and userfriendly design with newly designed mounting posts, our grout monitor ensures precise placement without glue or complex assembly steps. Attach two plates to each other easily and conveniently. 4. ADVANCED TECHNOLOGY The material selection ensures easy data reading. Made of quality ABS and acrylic, it guarantees durability and stability.