Johnson's ultra-bright green beam laser projects three self-leveling 360 planes of laser light for total jobsite coverage up to 200. This laser offers 3 green beams - one horizontal and two vertical for one-person alignment, leveling and layout using one tool. Robust construction withstands tough jobsite conditions and provides resistance to dust and water. Pulse mode for use with separate detector in bright light or outdoor conditions where beams are not visible. This all-in-one line laser featuring GreenBrite Technology is ideal for drop ceilings, drywall installation, sprinkler installation, HVAC, ceiling joint and rafter alignment, wallpaper and stenciling/painting, tiling (walls and floors), electrical outlets and switches, install conduit and wiring, track lighting, curtain walls/shower doors, windows, cabinet and countertop alignment, paneling/wainscoting. Includes Laser with magnetic base, magnetic target, li-ion battery and charger, alkaline battery compartment (alkaline batteries not included), hard-shell carrying case.