Features: High brightness Green, indoor and outdoor clearly. Indoor and outdoor use,far projection distance, high laser height, clear lines,visible in the sun. Precise measurement and more convenient to use. 4/8/12 line can be adjustable, suitable for different occasions to meet different engineering needs. 3D soft rubber clad, crashworthy and anti knock. Dust-proof, multiple protection, Longer life in harsh environment. 1600mAh large capacity battery with longer endurance life. 3D 12 line irradiation, 360° without dead angle. ±3°Automatic self leveling function. Sound warning when beyond auto leveling range. 360° self leveling function. 360° rotating base with fine tuning knob,quickly identify the target.Thickened metal base provides stable support and it is shockproof, shatter-proof. It can be slashed 180° With a tripod. Specification: Line Color: Green. Laser lines: 12 Line. Power:1x 3.7V 1600mAh Lithium Battery. Input Voltage: AC110-240V 50/60Hz. Material:Plastic+Aluminium Alloy. Wavelength Green Light: 666nm/532nm. Working Accuracy: ±1.5mm/5m. Automatic leveling range: ±3°. Operating temperature: -10°C - +45°C. Base Size:approx.10cm x 9cm. Size:approx.11cm x 10cm x 6cm. Product Weight: approx. 985g. Package included: 1 x Main Machine. 1 x Battery. 1 x Instrument Soft Package. 1 x Base. 1 x Power Adapter