Feature: 1. Quick Switching: The laser self leveling level features laser lines that allow you to quickly switch between vertical or horizontal lines, or even display both lines at the same time. In addition, the laser leveling system automatically determines the correct level. 2. Multiple Line Types: The laser 3D cross line level lets you project horizontal, vertical, tilt and cross lines on a flat surface and easily view the reference points of the 12 line level so you can measure just as smoothly. 3. High Accuracy: The laser self leveling level emits a bright, clear green laser beam that can be seen up to 15m away, making it easy to get accurate results. Its high visibility and accuracy are clearly designed for home or office use. 4. Waterproof: The green laser line leveler has a high level of debris and water resistance with an overmolded housing that can withstand the harsh conditions of the job site and is also scratch and abrasion resistant. 5. Automatic Leveling System: Professional high performance level and alignment tool. The line level laser provides a reliable automatic leveling system and the green laser is easy to view in bright environments. Specification: Item Type: Self Leveling Cross Level Meter Material: ABS Batteries: 1.5V AA batteries x 2 (without batteries) Basic Parameters: Wavelength: 635nm Accuracy: ±2.5mm/5m Line Width: <2.5mm/5m. Package List: 1 x Level 1 x Instruction Manual 1 x Storage Bag