SELF-LEVELING 3D laser level with green laser. 12 lines, 3 planes (3 lasers) Laser class 2 520nm (GREEN) !!! Minimum distance of the horizontal beam from the floor 7mm!!! Working range 30m. TWO (2) BATTERIES INCLUDED Degree of protection: IP54 Moisture-proof and Dust-proof Battery 21v 5000mAh (lithium-ion) - working time up to 16 hours Dimensions 130mm/80mm/135mm Accuracy 1 mm at 7 meters Working time 12-16 hours Ability to turn on and off the lines separately from the leveler Ability to work with an adapter when the batteries run out. Operating range 3 degrees (At an angle greater than 3 degrees, the leveler emits a sound signal for the impossibility of leveling). It is possible to turn off this alarm and lock the laser beam if a line is needed that is not level, but below some degree