High-Definition LCD Backlight Digital Screen: This torpedo level uses a large brightness LCD screen, allowing you to easily read your measurement data even in dark places. Gravity Sensing: When the device is flipped, the screen will automatically rotate to the correct orientation, providing convenient viewing of measurement data. The string level includes an audible beep function to indicate vertical and horizontal positions. Sturdy & Durable Aluminum Construction: This spirit level is constructed with high-quality aluminum, which is durable, rust-resistant, and wear-resistant. Strong compressive strength ensures it won't deform easily. 0-360 Degree Measurement: The line level offers a measurement range of 0360 degrees (4x90 degrees), catering to different measurement requirements in various situations. It ensures precision of 0.05 degrees for accurate horizontal and vertical position measurements