Features 1 3D 16 line irradiation 360 without dead angle2 Indoor and outdoor general Universal High brightness green indoor and outdoor clearly far projection distance high laser height clear lines 3 Precise measurement and more convenient to use 4 4 8 12 16 line can be adjustable suitable for different occasions to meet different engineering needs 5 Crashworthy and anti knock 3D soft rubber clad crashworthy and anti knock 6 International standard IP54 waterproof and dust proof multiple protection Longer life in harsh environment 7 4000mAh large capacity battery with longer endurance life long service life 4000 MAH large capacity li batteries standby time more than 72 hours working hours can last 12 16 hours can work for 2 days after charged 8 With the use of three tripod you can work with 180 oblique line9 3Automatic self leveling function Sound warning when beyond auto leveling range 10 360 rotating base with fine tuning knob quickly identify the target Thickened metal base provides stable support and it is shockproof shatter proof Specifications Material Aluminum Alloy ChassisEngineering PlasticsLaser lines 12 4 8 12 line is adjustable Laser Color GreenWall attachment distance 7mmHorizontal Vertical Accuracy 0 2mm 1mWavelength green light 532Automatic leveling range 3Rotation Degree 360cutback function YesProtection level IP54 DustproofWaterproofOperating temperature 20℃ 50℃Battery capacity 4000mAhWorking environment Indoo