Features: Achieve professional accuracy with this 2 line green beam levels featuring ±1mm/10m accuracy, enhanced by high visibility green technology for superior brightness in day conditions. Its double line projection enables simultaneous horizontal/vertical alignment, while the shock resistant ABS+metal construction with rubberized coating ensures durability across demanding site . Ideal for contractors, enthusiasts, and carpentry professional seeking stable visual instruments for precise measurements in construction and renovation projects. Perfect for installation, framing, electrical work, and outdoor landscaping where bright environments require clear visibility and double alignment capabilities. Compact yet hard , this auto leveling tool combines portability with workshop ready performances, delivering consistent results for both stationary tasks and mobile applications in residential/commercial settings. Specifications: Component : ABS+metal Size: about 7x6x6.5cm/3x2.4x2.6inch Automatic leveling ranges: 4°±1° Line width: 0.5mm/M Horizontal accuracy: ±2.5mm/5M Vertical accuracy: ±2.5mm/5M Power supply: 2 AA alkaline batteries (need to bring your own) Continuous working time: ≥4 hours Operating temperature: 0 to 50°C defense levels: IP54 Package Includes: 1 set Green levels note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.