Specifications:Type: 12 LinesLaser Class: Class 2 (IEC/EN60825-1/2014), output power <1mWLaser Beam Color: GreenLaser Wavelength: 510 nmLeveling Accuracy: 3mm/10mLeveling/Compensation Range: 41Working Distance (Line): 45m, up to 60m with laser reveiverOperating Time: 4 hours with all laser beams onSpread Coverage: H360/ V360 / V360 (3*360)Power Source: Li-lon batteryIP Rating: IP54, waterproof, dustproof and shockproof, reliable and tough.Operation Temperature Range: 14- 122(-10-50)Storage Temperature Range: -4- 158(-20-70Size: 8.9*6.5*9.1cm (3.5x3.58x2.56) Warning:Avoid direct exposure of the laser beam to the eyes.The laser would be affected by strong sun light when work outside FeaturesThe button introduction:The laser level has three laser windows, each window can launch 4 laser lines, totally 12 laser lines(4 laser lines combine to a plane). Attention: There are at least 4 laser lines, it can not keep 1 or 2 laser lines. Design:The 3D 903CG laser level is a compact, practical option for basic cross line leveling work. Measuring at 1/4 ", the laser can fit comfortably in the palm of your hand. It has a hard plastic housing to protect the laser beams and pendulum leveling system within. The housing has a ribbed rubber casing that protects it from scratches while giving extra friction to make it slip resistant. Mounting Option:The 3D 903G laser level has 2 mounting nut with a 1/4 " thread and a 5/8" thread at the bottom of the unit. This allows you to mount it either to a bracket or a tripod for security. Leveling Function:Once the pendulum is in unlocked condition, the instrument will be self-leveling within 4 degrees, when the unit is using out of the leveling range, laser lines and main indicator will keep flashing. Pendulum Lock:The 12 lines Green beam laser level is a precision instrument and should be treated with care. When not in use, the pendulum should always be in the Off position (OFF mode). Locking the pendulum allows the Cross Line Laser to better withstand vibration and Trauma incurred during transportation or if the units is dropped. Tips:1. Please allow 1-3cm error of measurement.2. Photo color might be a little different from the actual product due to color display of different monitorPackage Included1 X 903CG laser level1 X Lithium battery1 X Battery charger1 X Magnetic pivoting Base1 X Green Laser target1 X Cloth case1 X English User's Manual