Laser Beam Color: Green. Laser Class: Class 2 (IEC/EN60825-1/2014), output power. Laser Wavelength: 510 nm. Leveling Accuracy: ±3mm/10m(±1/9 inch at 33Ft). Working Distance (Line): 45m/147ft, up to 60m/196ft with laser reveiver. Operating Time: 4 hours with all laser beams on. Spread Coverage: H360°/ V360° / V360° (3360°). Power Source: Li-lon battery. Size: 8.96.59.1cm (3.5″x3.58″x2.56). Laser Level Items in the Package. 1 X Huepar 903CG laser level. 1 X Magnetic pivoting base. 1 X Green laser target card. 1 X Cloth case. 1 X English User’s Manual. 1 X Lithium battery. 1 X Battery charger. Receiver Items in the Package. 1 X Huepar LR-5RG Digital Laser Detector. 1 X Heavy-duty clamp. Tripod Items in the Package. 1 X Huepar 56/143cm Tripod. 1 X Carrying Bag. 1 X Instruction Manual. 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. The 903CG laser is a cross line laser level. This unit is self-leveling with accuracy range of within ± 4 °. The working range of this laser is up to 45m, depending on the work area’s illumination. 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. 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. The unit can be placed on a regular surface, but securing it usually guarantees less movement for more accurate work. A magnetic base is included in the package. 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. 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. The difference between the green laser and the red laser:endulum Lock. They are from the same factory, the function is same. The green laser’s visibility is four times of the red laser, it’s material costing is higher than red laser, it sales more expensive than red laser.