"The Rotary Laser Level features self-leveling in the horizontal plane and manual-leveling in the vertical plane with 90 split beam. Range scan modes include dot and two adjustable line lengths. Visual and audible alarms when beyond leveling range. Material Type Rugged housing, Vertical Leveling Yes, Scanning Modes qty. 3 0, 30, 60, Visual or Audible Indicator Both, IP Protection Class IP 66, Laser Beam Color Red, Interior Range ft. Up to 200, Battery Included Rechargeable battery pack and 6V adapter, Rotation Speed 150, 200, 250, 300 rpm variable, Laser Output 5mW, Dimensions L x W x H in. 7 1/16 x 6 3/8 x 7 61/64, Battery Type Rechargeable battery pack, 6V adapter or C batteries, Leveling Type Self pendulum, Single, Pair, or Set Set, Exterior Range ft. Up to 2,000, Class Rating Class IIIa, Case Type Hard shell case, Accuracy 1/8 in. per 100 ft., Laser Wavelength 635nm10nm, Horizontal Leveling Yes, Self Leveling Range 3.5, Battery Life Approx. 15 hrs. of continuous use, Beam Type 90 split beam, Working Temperature 32F to 104F, Tripod Mount Dimensions in. 5/8 in.-11 center screw thread. Locking mechanism protects inner pendulum during transit"