This complete level and alignment laser quickly arranges and squares room layout with 3 chalk lines in 360° laser planes, one horizontal and two perpendicular vertical lines. The built-in VisiMax™ technology monitors power consumption to maximize line visibility and extend battery life. Upgraded diode with a brighter beam delivers a visible range of up to 200' in diameter. The BM1 positioning device clips to multiple surfaces, stands on the floor with retractable feet and mounts to drywall or wood with screws for a quick and easy setup. The smart pendulum system self-levels and indicates out-of-level condition up to ± 4°. The manual mode locks lines for use at any angle. The robust over-molded construction IP54 ensures splash water and dust protection for years of reliable operation. Includes: (1) BM1 positioning device, (1) laser target plate, (4) AA batteries. This product is backed by a 1-year limited warranty.