General description The Bosch GLL 20-22 G Professional Line Laser is a robust and intuitive line laser designed for a wide variety of applications. With an IP65 rating and rubber-enforced housing, it is built to withstand dust and water, allowing you to work confidently in tough conditions. The U-shaped laser window provides a broader fan angle for the horizontal line, enhancing its usability. Technical specifications Accuracy: ± 0.3 mm/m Self-levelling Range: ±4° Working Range: 20m Working Range of Laser Points: 10m (top), 10m (bottom) Levelling Time: 4 Seconds Power Supply: 3.7 V Li-Ion battery (3000 mAh) or 4 x 1.5 V LR6 (AA) Operating Temperature: -10-50°C Storage Temperature: -20-70°C Dust and Splash Protection: IP65 Tripod Thread: 1/4in Weight: 0.56kg Compatibility and accessories Supplied with: 4 x AA 1.5V LR6 Batteries 1 x LB 10 Professional Universal Mount 1 x Alkaline Battery Adaptor 1 x Laser Target Plate 1 x Pouch Usage The bright green laser lines provide up to four times