Green Laser Level: Self-Leveling, High-Precision, High-Intensity Laser

Product Name: Inverter Level
Horizontal Accuracy: 2 mm / 10 m
Working Diameter: 40 m
Vertical Accuracy: 2 mm / 10 m
Water and Dust Resistance Rating: IP54
Downward Pointing Accuracy: 3 mm / 10 m
Power Supply: 4.2 V, 5200 mAh battery pack
Laser Wavelength: 505 nm–532 nm 
Unit: nanometers