1: Laser grade:<1mw power output
2: Number of laser heads: Four lasers emit 360 degree laser lines, each laser line can form a 360 degree ring
3: Surface distribution of 360 degree laser line in laser level: two horizontal planes and two vertical planes intersect each other
4: Laser wavelength: 505-520nm
5: Horizontal and vertical accuracy: 33 feet+1/9 inch
6: Leveling/compensation range soil 3.5
7: Working distance: 32 feet
8: Working distance: 32 feet
9: Battery specification: 2400mAh * 2
10: Working hours: 2 batteries can be used continuously for about 6 hours
