1、Widely used in stair floor laying, woodworking decoration, hanging installation, wall construction, doors and window decoration. 2、Green beam fine light source, high accuracy, accurate measurement, small error, more convenient to use. 3、Made of high quality ABS material, durable, wear ‑ resistant, corrosion ‑ resistant, long service life. 4、Three‑dimensional bracket fine‑tuning design, stable placement, higher efficiency. 5、Portable design, it effectively reduces labor strength, improves working efficiency. Item Type: Line Level Material: ABS Color: As shown in the picture Model: SW-333G Application: Used in construction, decoration, home improvement, home furnishing, furniture, etc. Battery: Li-ion 3.7V 5200mAh(Included) Basic Parameters: 1. Laser Class: Class 2 (IEC/EN60825-1/2014) 2. Laser Wavelength: 510-530 nm 3. Leveling Accuracy: ±3mm/10m 4. Vertical and Horizontal Accuracy: ±3mm/10m 5. Leveling/Compensation Range: 4°±1° 6. Working Distance (laser Line): 30 meters (100 lx ambient light) 7. Working Time: About 4 hours (all lasers are turned on) 8. Waterproof/Dustproof Grade: IP54 9. Working Temperature Range: -10℃-50℃ 10. Storage temperature range: -20℃-70℃ 11. Working Distance with Receiver: >50m How to Use Press and hold the power/lock switch on the top of the instrument to turn on the instrument and project the laser. 1 x Host 1 x Bracket 1 x Power Adapter 1 x USB Cable 1 x Tripod Converter 1 x Lithium Battery 1 x Portable Bag 1 x Instruction Manual