The Self-Leveling Rotary Laser Level features automatic-leveling, plus slope function to allow user to perform slope at different inclination in both x and y axis. Included detector and remote control for convenient operation. Vertical Leveling: No, Laser Output: ±5mW, Case Type: Hard shell case, Interior Range (ft.): Up to 200, Tripod Mount Dimensions (in.): 5/8in.-11 center screw thread, Single, Pair, or Set: Set, Visual or Audible Indicator: Both, Working Temperature: 14deg F to 113deg F, Grade Capability: ±8deg , Exterior Range (ft.): Up to 2,000, Battery Life: Approx. 28 hrs. of continuous use, Laser Wavelength: 635nm±10nm, Self Leveling Range: ±5 degrees, Accuracy: 1/16 in. at 100 ft., Laser Beam Color: Red, Rotation Speed: 700 rpm Fixed, Battery Included: Yes (4), IP Protection Class: IP 66, Leveling Type: Automatic (electronic), Battery Type: C, Class Rating: Class IIIa, Dimensions L x W x H (in.): 7 3/8 x 5 7/8 x 8 5/32, Horizontal Leveling: Yes