airsee self-leveling laser level, 2021 upgrade 3d green blue beam 3x360 cross rechargeable 12 line laser with remote control –three plane leveling line laser level with tripod pivoting base airsee <b>specification:</b><br> <br>●laser class: class 2 (iec/en60825-1/2014), <1mw power output <br>●laser wavelength: 505-520nm <br>●horizontal/vertical accuracy: ±1/9 inch at 33ft <br>●leveling/compensation range: ±4° <br>●working distance (line): 130ft (100 lux) <br>●operating time with lithium battery: 7 hours with all laser beams on <br>●ip rating: ip54