Green 3 x 360° lines for exact layout work. GREENBEAM technology for work on optimally visible lines up to 130 ft. Fast self-leveling thanks to a pendulum mechanism that is rugged enough for construction sites. Extremely rugged, water- and dustproof in accordance with IP 65. CAS 12 V LI-POWER 2.0 Ah rechargeable battery for a long life of up to 15 hours.