The Bosch GLL 2-10 Professional Line Laser projects horizontal and vertical laser lines, ideal for short-range applications. Its compact design and intuitive operation allow for easy handling. Robust thanks to IP54 dust and splash water protection. Supplied with: 3 x AA 1.5V LR6 Batteries.1 x Protective Bag. Specifications: Accuracy: 0.3 mm/m.Self-levelling Range: 4.Working Range: 10m.Levelling Time: 4 Seconds.Power Supply: 3 x AA 1.5V LR6 Batteries (supplied) .Operating Temperature: -10-50C.Storage Temperature: -20-70C.Dust and Splash Protection: IP54.Tripod Thread: 1/4in, 5/8in.Weight: 0.49kg.