100ft Green Cross Line Laser Level 360° Self-Leveling Mode Measure Tool IP54
Leveling Accuracy: ±3mm/5m( ±1/8 In, at 16 Ft). Laser: Green Beam. Laser Wavelength: 505~550nm for Green beam. Working Distance (Line): 30m/100 feet for Green beam. Laser Class: Class 2(IEC/EN60825-1/2014) <1mW power output.