Made of the highest quality materials and designed with the main focus on practicality and maximum precision in working conditions. Professional Level GLL -80 C, enables high ease of use thanks to the approach to the competitive requirements of professionals in the field of construction and design. Provides perfect visibility thanks to powerful diodes, with 360 ° operation. Bluetooth connectivity enables remote operation. Operates on standard Bosch 12 V Li-ion batteries, or with regular AA batteries. Provides self-leveling on irregular surfaces with an irregularity angle up to +/- 4 °. The maximum operating length is up to 120 m, with an error of ± 0.2 mm / m. Ideal for installing windows, gypsum walls, installing tiles, decorative coatings, etc., as well as for floor construction.