Feature: 1. Millimeter‑level precise dial can accurately position the vertical line, reduce errors and improve work efficiency. 2. Low refraction, strong penetrating power, good light transmission, using optical glass without other variegated colors. 3. Supports self‑leveling, put it on a flatter place, and automatically level within a tilt of <4°. 4. The flexible multi‑mechanism pendulum body guarantees stable, accurate and stable even with any vibration. 5. IP54 protection grade, compact and portable, suitable for indoor wall construction, photo hanging, etc. 6. The locking mechanism protects internal parts, allows manual mode, and is easy to operate. Specification: Item Type: Leveling Tool Material: Plastic Model: T05 Laser Beam: 1H1V Number of Laser Diodes: 2 Beam Color: Red Beam Laser Wavelength: 630-670nm Laser Power (H/V): 5mw Accuracy (H/V): ±1.5mm/5m Energy-Saving Mode: 3-speed energy-saving mode can save power Automatic Compensation Range: 4°±1° IP Rating: IP54 Laser Class: Class 2 Working Temperature: -10-50℃ Working Range: 15m / 49.2ft Working Range with Receiver: 50m / 164ft Beam Launch Angle (H/V): 130°/120° Battery: 1000mAh built-in lithium battery (Type-C interface) Working Time: About 12 hours for the 1st gear, about 24 hours for the 4th gear. Package List: 1 x Leveling Tool1 x Storage Bag1 x Bracket1 x USB Cable1 x Manual