... -leveling, 2,wide leveling range, 3,high precision and stability Features and FunctionsSelf-leveling, and laser flashing when beyond self-leveling rangeAble ... /8'' threadLS606JSII adds a metallic tripodic base with graduated circleSpecifications:Laser wavelength: 635nmLaser class: Class IIAccuracy: ±1/4"/100ft. (±1mm/ ... )Weight: 2.56 Ibs. (1.16 kg) Automatic 500m Range Rotary Laser Level Self-Leveling