Milwaukee introduces the first plumb beam laser to operate on a power tool battery, the M12 12V Lithium-Ion not included. Compatible with the M12 cordless system and delivers 75 more run time than the competition. The 2-beam plumb laser's self-leveling mechanism ensures an accurate auto plumb up to 1/4in. @ 100 feet. Does not include case. Accuracy 1/4 in. at 100 feet, Leveling Type Self, Base Type Standard or magnetic, Visual or Audible Indicator Visual, Battery Type 12V Lithium-Ion, Self Leveling Range 4, Mount Type Stand alone or magnetic, Laser Wavelength 635nm, Laser Beam Color Red, Battery Included No, Beam Type Line, Laser Output 1mW, Beam qty. 2, Case Included No.