laser level wavelength:650nm ourput power of laser beam:<1mw measure range of laser beam:3m-5m power:2*7# batteries.ROHS.CE laser level set  measure range of laser point:30m-50m(in different brightness condition)accuracy of leveling...

laser spirit level wavelength:650nm ourput power of laser beam:<1 <5mw measure range of cross laser beam:3-5m power:2*7 batt laser spirit level set measure range of laser point:30m-50m(in different brightness condition)accuracy of laser point:+-5mm/10maccuracy of...