GLL 20-22 G line laser. The GLL 20-22 G Professional is a robust and intuitive line laser that is suitable for a wide range of applications. Thanks to IP65 protection and a rubber-reinforced housing, it is protected against dust and water so that you can work carefree even in the toughest conditions. The U-shaped laser window offers a wider aperture angle for the horizontal line. And with Dual Power Source, you can switch between the BA 3.7V 3.0Ah XL Li-ion battery and AA alkaline batteries - minimising downtime and increasing productivity. The BA 3.7V 3.0Ah XL can be charged during use and ensures a seamless workflow without power interruptions. The GLL 20-22 G is ideal for stair construction, aligning walls, sockets and partitions as well as laying tiles and floor coverings. The tool has a large, easy-to-read battery indicator. The bright green laser lines offer four times better visibility than red lines for easier levelling - no matter where you are working. 4 x 1.5 V LR6 battery (AA). Adapter for alkaline battery. Universal holder LB 10. Laser target plate. Bag.