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This 12-line green laser high-precision leveling instrument and 16-line infrared leveling instrument are ideal tools for construction projects. The 12-line green laser instrument is equipped with a blue light function, allowing for automatic alignment both indoors and outdoors, ensuring accuracy and efficiency. The 16-line infrared instrument features 8 horizontal lines, 8 vertical lines, and 10 cross lines in all directions, with a far projection distance and clear visibility of the infrared lines. With its powerful 40-meter light source and 1-millimeter fine lines, it performs exceptionally well in various engineering scenarios. Multiple alignment modes meet the construction needs, making construction projects more precise and efficient.