"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, Interior Range ft. Up to 200, Exterior Range ft. Up to 2,000, Single, Pair, or Set Set, IP Protection Class IP 66, Laser Beam Color Red, Laser Wavelength 635nm10nm, Laser Output 5mW, Battery Included Rechargeable battery pack/6V adapter, Battery Type Rechargeable battery pack, 6V adapter or C batteries, Leveling Type Self pendulum, Rotation Speed 150, 200, 250, 300 rpm variable, Dimensions L x W x H in. 7 1/16 x 6 3/8 x 7 61/64, Horizontal Leveling Yes, Class Rating Class IIIa, Beam Type 90 split beam, Working Temperature 32F to 104F, Tripod Mount Dimensions in. 5/8 in.-11 center screw thread, Battery Life Approx. 15 hrs. of continuous use, Case Type Hard shell case, Accuracy 1/8 in. per 100 ft., Self Leveling Range 3.5. Locking mechanism protects inner pendulum during transit"