Feature: 1. HIGH ACCURACY: The cross line level has an accuracy of ±2.5mm/5m, with small error, and indoor working range of 7.5 meters, convenient and practical. 2. MULTIPLE USAGES: Suitable for placing shelves, pictures, mirrors, curtain rails, cabinets, wallpapers, floors, or wall tiles, ensuring standard and accurate position. 3. 1/4 THREAD HOLE: This level has 1/4 inch thread hole, can be used with various fixing devices and accessories, such as a tripod, which is stable and reliable. 4. CROSS GREEN BEAM: This level is cross line and green beam design, providing bright horizontal and vertical light, suitable for alignment and leveling works. 5. EASY OPERATION: With ergonomic design, this level is suitable for single hand operation, used for furniture installation, construction project, DIY decoration, etc. 6. SELF LEVELING: When the surface inclination is ≤4, it will automatically level, when the surface inclination is >4, it will continuously flash to indicate adjustment. Specification: Item Type: Cross Line Level Model: VNT29003 Material: ABS Wavelength: 520nm Power: <1mw Type: Class 2 Accuracy: ±2.5mm/5m Width: 2.5mm/5m Automatic Leveling Range: 3° Indoor Working Range: Approx. 7.5 meter / 24.6ft Working Temperature: -10-50℃ Protection Grade: IP54 Power Supply: 2 x AA Alkaline Battery (battery not included). Package List: 1 x Cross Line Level1 x User Manual Note: If not used for a long time, please remove the battery from the compartment.