1Self leveling when tilt angle is not over 3 degree. 2Automatically alarm (laser flashing, buzzer beeping) when the self leveling range is exceeded. 3Magnetic damping compensation system ensures fast leveling time. 4Laser point to the ground for machine positioning. 5Horizontal / vertical / cross lines measurement.Features:1.Self leveling when tilt angle is not over 3 degree.2.Automatically alarm (laser flashing, buzzer beeping) when the self leveling range is exceeded.3.Magnetic damping compensation system ensures fast leveling time.4.Laser point to the ground for machine positioning.5.Horizontal / vertical / cross lines measurement.6.360 degree rotatable base with fine-tuning components makes the machine quickly finds the target.7.Can be used with a tripod to adjust the height of thelaser spirit level.8.Using semiconductor laser tubes with a wavelength of 650nm, the laser lines are clear and bright.Specification:Line color: GreenNumber of line: 2 line, 3 line, 5line (Optional) Power supply: AC 100-240V or built-in lithium batteryMaterial: ABS housingLaser wavelength: 650nmBag size: 21 x 16 x 23cm / 8.2 x 6.3 x 9.0inPackage weight: Approx. 1372g/48.4ozPackage list:1 xLaser Spirit Level 1 x Green Light Eyeglasses2 x Lithium Battery1 x Power Adapter1 x Battery Charging Cable1 x Black Bag1 x User Manual Note: Please kindly make a note if you need any plug adapter.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.