Features: 1. Real-time measurement and accurate data. 2. 4D 16/12/8 line irradiation, 360° no dead angle. 3. Using APP, remote operation can be carried out on the mobile phone. 4. Built-in large-capacity lithium battery with power saving mode. 5. Easily slash at any angle to meet the requirements of stair slash installation. 6. Strong anti-collision performance, 4D soft rubber coating. 7. Equipped with ±3° automatic self-leveling function, when the automatic leveling range is exceeded, an audible warning will be issued. 8. 8/12/16 lines are available for selection, suitable for different occasions and meeting different engineering needs. 9. Adopt international standard IP54 waterproof and dustproof, multiple protection, longer life in harsh environments. 10. Support indoor and outdoor use, high-brightness green, long projection distance, high laser height, and clear lines. 11. A wide range of applications, auxiliary ceramic tile fixation, wall decoration, floor tile fixation, staircase handrails, fur ceilings, floor tiles, plastering, etc. Specifications: Color: Yellow. Laser Lines(Optional): 16 / 12 / 8 Line. Material: Aluminum Alloy Chassis Engineering Plastics. Laser Color: Green. Wall Attachment Distance: 7 mm. Horizontal/Vertical Accuracy: ±1mm/7m. Wavelength Green Light: 520 nm. Protection Class: Class Ⅲ. Automatic Leveling Range: ±3°. Rotation Degree: 360°. Battery Capacity: 4800mAh. Working Time: 4-8H. Protection Level: IP54 Dustproof; Waterproof. Working Environment: Indoor/Outdoor. Operating Temperature: -20℃~+40℃. Package Included: 1 x Laser Level. 1 x Remote Control. 1 x Lift Holder. 1 x Wall Bracket. 1 x Iron Sheets. 1 x Bracket Connector. 1 x Lithium Battery. 1 x Charger. 1 x Anti-fall Bag. 1 x User Manual. Notes: 1. Manual measuring, please allow 1 ~ 3 cm error. 2. Please leave us a message about your prefer Laser Lines Quantity,or will send by random. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Please understand, thank you