The DeWalt Self Levelling Green Cross Line Laser projects both a horizontal or vertical highly accurate green beam with an accuracy of +/-3mm at 10m. Its durable design with IP54 rated water and debris resistance makes it ideal for outdoor applications. The laser maintains full brightness for visibility, having a working range of 20m and detector range of 50m. The locking pendulum prevents damage of internal components during transportation. Suitable for internal applications such as levelling kitchen cabinets, wall tiling, wallpapering, curtain rails, ceiling drywalling, aligning stud walls and trim.