Whether you"re trying to level the ground before building a deck, or installing a ceiling grid, the self-leveling DW079KD rotary laser kit from DEWALT will help save you time and stress. 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. This cordless laser can be powered by a variety of DEWALT batteries, from 9.6 volts to 18 volts, and it comes with one 18-volt XRP battery. Everything you need for interior and exterior leveling (view larger). DW079KD 18-Volt Self Leveling Interior/Exterior Rotary Laser Kit At a Glance: Fully automatic horizontal and vertical self leveling Manual single sloping mode to set grade ±5 degrees Protected rotary head and weatherproof design Includes one XRP battery and 1-hour charger Three-year limited warranty; one-year free service Performance and Convenience Flexible and durable enough for both indoor or outdoor use, the DW079KD rotary laser boasts accuracy to plus or minus 1/8-inch per 100 feet, and has protective features--like a rough-and-tough rotary cage--that guard against weather damage. This cage is also made up of several slender struts that offer two additional benefits: consistent power, and the prevention of blind spots. There"s even a rubber over molding that helps reduce the likelihood of broken parts should you drop the DW079KD on potentially vulnerable areas. Easy to operate with a user-friendly design, just turn the DW079KD on and let it go to work--it"ll automatically level in either horizontal or vertical mode. You can see its beam up to 100 feet indoors, up to 2000 feet outdoors--simply control it with the included wireless remote. And the included clamp can locate the beam up to 1000 feet (radius) from the laser. For added convenience, this rotary laser and has an insulated battery door for quick battery removal and protection from water, dust, and debris. DEWALT"s XRP Extended-Life Battery System A tool"s only useful if it runs long enough to get the job done, and the DEWALT XRP extended run time batteries keep the DW079KD running at full tilt. They provide up to 40 percent more run time than standard Ni-Cad batteries, and any XRP battery can be used with any 18-volt DEWALT tool, which allows you to expand your system by adding other DEWALT cordless tools (sold separately) as the demands of your job grow. The DW079KD comes with one 18-volt XRP battery and a 1-hour charger. Warranty This DEWALT tool is backed by three-year limited warranty covering any defects due to faulty materials or workmanship (from the date of purchase). It"s also covered by DEWALT"s three-year free service contract, where DEWALT will maintain the tool and replace worn parts caused by normal use--for free. What"s in the Box DW079KD kit includes the DW0772 detector and clamp, DW0730 target card, DW9096 18-volt battery, DW9116 charger, DW0794 remote, DW0790 wall mount, kit box, and operating instructions Cordless and wall mountable for easy placement in your job site (view larger).