With the DEWALT DW087K self-leveling line laser, you get accurate measurements essential to all construction and remodeling projects. This self-leveling line laser can be used for both horizontal and vertical applications and gives precise readings even at long distances. Self-Leveling Line Laser At a Glance: Self-leveling within 5 degrees Accurate to within 1/8 inch at 30 feet Easy one-button operation Indoor visibility range of 50 feet Three-year limited warranty, one-year free service, 90-day money-back guarantee This precise line laser lets you take on complex projects with confidence. View larger. Features one-button operation and a magnetic pivot bracket. Delivering the Accuracy You Need Whether you"re lining up lighting fixtures or flooring, the DEWALT self-leveling line laser eliminates the need for clumsy chalk lines or time-consuming calculations. This efficient tool offers self-leveling within 5 degrees, allowing for a quick, easy, and reliable measurement. Plus it is accurate to within 1/8-inch at a distance of 30 feet. Convenient, Durable Design with Magnetic Bracket Built for easy use, the DW087K offers one-button operation--no complicated menus to worry about. It also features a built-in, magnetic pivot bracket that allows the level to be mounted quickly and easily on metal surfaces. And, when working indoors, the level"s red laser line is visible at a distance of 50 feet. A set of three AA batteries can supply over 20 hours of run time, so battery changes are few and far between. Durable Housing and Protective Kit Box The DW087K"s over-molded housing helps maintain calibration under tough job-site conditions, and the sturdy kit box protects the laser between uses. The DW087K self-leveling line laser comes with a DEWALT warranty package that includes a three-year limited warranty, a one-year free service contract, and a 90-day money-back guarantee. What"s in the Box One DEWALT DW087K self-leveling line laser, three AA batteries, and a kit box. Use the line laser to measure acoustical drop ceilings. Make fast work of steel framing projects. Install cabinets with confidence and precision. Take on chair rail installation and other detailed finishing projects.