The David White dual grade, split beam, self-leveling rotary laser level features Pro-Grade technology that makes it perfect for almost all indoor and outdoor applications.Application:Indoor or outdoor.Range:2,800ft.Accuracy:1/16in at 100ft.Battery Type:D.Battery Included:Yes.* Dual grade, split beam, self-leveling rotary laser level features Pro-Grade technology.* Perfect for almost all indoor and outdoor applications.* Strong and durable enough for the most demanding construction projects.* Super fast electronic self-leveling and Anti-Drift system that produces superior, accurate results every time.* Accurate to 1/16in. at 100ft., with a working range of up to 2800ft. in diameter when used with the included laser detector.* Provides horizontal and vertical capabilities, along with dual electronic grade up to 10percent. * Provides variable speed rotation, chalkline modes, point-to-point chalkline and spot mode. Package includes laser detector, detector bracket, remote control, 2 targets, glasses, battery tray with 4 D-cell batteries and carrying case.