This self-levelling cross line laser is accurate to ± 0.3 mm/m in levelling applications. Its self-leveling range is ± 4° with automatic out of level indication, and it marks a levelled line in seconds. Two-button operation and low battery indication make it easy to use. This Dewalt level is equipped with a built-in magnetic pivot bracket that mounts easily on metal surfaces, and an overmolded housing and thick glass to help maintain calibration under jobsite conditions. Includes 3 AA batteries for 40 plus hours runtime. Works with DE0892 detector. 3-year warranty.