• Emits visible laser horizontal and vertical lines for automatic leveling. • Output 4 360° line lasers, forming 10 cross lines (16 lines). • Can be attached to floor tiles, wall stickers, and ceilings (7mm pitch). • Suitable for both indoor and outdoor use, continuous or pulsed laser. • Automatic leveling within ≤3°, with buzzer alarm when >3°. • IP54 waterproof and dustproof rating. • Precision: ±1mm/7m. Working distance: 25m. • Powered by lithium battery, operating hours: 4-8 hours.