The Bosch GLL 100 GX Green-Beam Self-Leveling Cross-Line Laser features a laser with vertical, horizontal and cross-line modes. The laser projects two lines independently or together, for a broad array of alignment and leveling applications. It includes Bosch-exclusive VisiMax technology, which allows for outstanding line visibility in standard working conditions. It constantly monitors the laser's temperature so the diodes are always driven to maximum line visibility, while protecting the laser diodes from overheating. Green beams are up to 4X brighter than standard red beams, and this gives the tool a working range up to 100 Ft. The tool offers an accuracy of ±1/8 In. at 33 Ft. and ±3/8 In. at 100 Ft. The Bosch Smart Pendulum System self-levels and indicates out-of-level condition, to help ensure an accurate layout. It locks the pendulum after the laser is switched off for secure transport. The laser is built with sturdy over-molded construction with an IP 54 rating to protect against dust and water. The included BM3 Positioning Device offers quick setup in ceiling grid applications and free-standing mode with its retractable feet and microfine height adjustment. The package also includes a heavy-duty pouch.