BOSCH | Professional Line Laser + Adapter+Target 0.9 KG | GLL 3-80 CFeatures Type: Line Laser Laser Type: 630 650 nm, <10 mW Laser Class: 2 Working range: 30m Accuracy: 0. 2 mm per 1 m Self Leveling Range: 4 Leveling time: 4 s Operating temperature: 10 40 C Storage Temperature: 20 70 C Protection against dust and water splashes: IP 54 Batteries: 4 x 1. 5 V LR6 (AA) batteries 12 V lithium ion battery (we draw your attention to the fact that the battery is not supplied and must be purchased separately) Operating time in