The Dewalt DW079KDT Cordless Rotary Laser Kit provides an effective way to work faster, smarter and much more precisely on a wide variety of interior and exterior layout and installation jobs. This fully automatic horizontal and vertical self-leveling laser is equipped with a remote control and out-of-level shutoff that eliminates errors, reduces set-up time, and ensures accuracy. The unit comes calibrated and ready to work, with an indoor visibility range of 200 ft. The included digital laser detector increases the working range to 2000 ft. It features a protected rotary head and weatherproof design for increased durability, and a three-speed motor (60, 250, 600 RPM) with extreme bright laser beam. The multi-voltage adapter accepts all Dewalt batteries ranging from 9.6 to 18 volts. The DW079KDT includes 18V XRP battery, one-hour charger, laser target card, wireless remote control, laser enhancement safety glasses, digital laser detector, wall mount, tripod and heavy-duty kit box.