The SOKKIA SDL30 Digital Level Power Level SDL 30 is a precise and reliable laser line level designed for various leveling tasks in construction, surveying, and inspection. With its pendulum self-leveling method and optical beam technology, this model ensures accurate results and stability. The red beam color and easy-to-use automatic leveling features make it a convenient tool for professionals and DIY enthusiasts alike. Built by the reputable brand SOKKIA, the SDL30 Digital Level Power Level SDL 30 is a trusted choice for achieving precise levels and measurements.Has a bad battery but did work before battery went bad! Has a plastic piece that is broken which is the flip up mirror that needs to be reattached but still works.Selling for parts but will work with new battery