Self-Leveling Rotary Laser Level features an electronic beam shield to turn the laser beam off from 1-3 quadrants for multiple laser usage. Electronic self-leveling designed for indoor and outdoor use in construction and other applications. Material Type: Reinforced metal roof and glass enclosed beacon, Class Rating: Class IIIa, Battery Included: Yes (6), IP Protection Class: IP 66, Accuracy: 1/16 in. at 100 ft., Vertical Leveling: No, Grade Capability: Dual slope ±5deg , Case Type: Hard shell case, Self Leveling Range: ±8deg , Tripod Mount Dimensions (in.): 5/8in.-11 center screw thread, Leveling Type: Automatic (electronic), Dimensions L x W x H (in.): 5 1/2 x 5 1/2 x 7 7/16, Interior Range (ft.): Up to 200, Exterior Range (ft.): Up to 2,000, Battery Type: AA, Working Temperature: 14deg F to 113deg F, Laser Beam Color: Red, Horizontal Leveling: Yes, Laser Wavelength: 635nm+10nm, Rotation Speed: 800 RPM fixed, Battery Life: 17 hrs. w/rechargeable battery pack, Laser Output: 5mW, Indicator Type: Visible and audible, Visual or Audible Indicator: Both