CIGMAN CM-720SE Laser Level Self-Leveling Green Cross Line Specifications: Laser class: Class II Laser wavelength : 505-550nm Leveling Accuracy : ±1.5mm/5m Leveling/Compensation Range： 4°±1° Working Distance (Line): 30m Power Source 3.7V 4000mAh / Lithium Battery Operating Time： First Gear: 10 Hours Second Gear: 18 Hours Third Gear: 30 Hours Forth Gear: 50 Hours IP Rating: IP54 Operation Temperature Range: -10℃ - ＋50℃ Storage Temperature Range: -25℃- ＋75 Read the Safety Instructions and Manual thoroughly before using the product. While the product is in operation, be careful not to expose your eyes to the emitting laser beam. Exposure to a laser beam for an extended time may be hazardous to your eyes. Do not stare directly into the beam or view directly with optical instruments or set up the laser at eye level.The measuring tool is required to repaired by qualified specialists using original spare parts. This ensures that the safety of the measuring tool is maintained.Do not allow children to use the laser measuring tool without supervision. They could unintentionally blind other people or themselves.Do not operate the measuring tool in an explosive environment, such as in presence of flammable liquids, gases, or dust. Sparks can be created in the measuring tool which may ignite the dust or fumes. Do not make any modifications to the las! Magnet holder Stable attachment to metal surfaces 4 levels of brightness Can be freely selected according to needs, saving energy 3D 360° Laser Lines Can be selected individually depends on job site applications, saving time Package Contents 1x CM-720SE Laser Level Tool1x Portable Bag1x Magnetic L-Shaped Bracket1x Type-C cable1x User Manual Wide Range of Applications