12 lines laser level self leveling, ommo 3d green laser level for construction, 3 planes leveling with two 360° vertical and one 360° horizontal lines, li-ion battery and remote controller included ommo specification laser type : green beam, 520nm, class 2 (iec/en60825-1/2007) , <1mw laser accuracy: ±1mm/7m operation functions: self-leveling mode, manual-leveling mode auto level range: ±4° out-of-level indication: optical signal/audible transport lock: yes thread for attachment connection (inch): 1/4 in. at bottom tool height (inch): 4.7 tool length (inch): 4.3 tool weight (pound): 1.26 tool width (inch): 3.5 typical laser visibility/working range (ft): 98ft battery hours: 6 hours each