The Johnson 40-6700 Red Beam Laser Level LCD Detector is a versatile and reliable tool for indoor and outdoor use. Powered by a 9V alkaline battery, this detector features red rotary beams for accurate leveling and alignment. With a compact design and easy mounting options, this product is perfect for various surveying and inspection tasks. The included detector, 9V battery, clamp, and instructional manual make it a convenient and essential tool for professionals in the construction and surveying industries. Additionally, the Johnson Level & Tool brand ensures quality and durability, backed by a 3-year manufacturer warranty.