Features 1 4D 16 12 8 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 Touch screen design LCD display touch screen operation more convenient Precise measurement and more convenient to use 4 8 12 16 line can be Optional suitable for different occasions to meet different engineering needs 5 Crashworthy and anti knock 4D 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 tripod you can work with 180° oblique line not included the tripod 9 ±3°Automatic self leveling function Sound warning when beyond auto leveling range Specifications MaterialAluminum Alloy Chassis Engineering PlasticsLaser lines 16 12 8 line Laser Color GreenLaser Level Color RedWall attachment distance7mmHorizontal Vertical Accuracy ±0 2mm 1mWavelength green light532Automatic leveling range±3°Rotation Degree360°Slash function YesProtection level IP54 DustproofWaterproofOperating temperature 20℃ 50℃Battery capacity4000mAhWorking environmentIndoor OutdoorWorking time 12 16hPower1 x 4000mAh Rechargeable LiBattery