Model Number:DUKA LI1 Laser Protractor Power Type:Rechargeable Origin:Mainland China Laser wavelength:660nm Laser class:Class II Protection level:IP54 Indoor distance:≤10m Horizontal accuracy:±1mm/5m Vertical accuracy:±1mm/5m Battery specification:730mAh rechargeable lithium battery DUKA LI1 Laser Protractor Digital Inclinometer Angle Measure 2 in 1 Laser Level Ruler Type-C Charging Laser Measurement Tools "Double Laser" Version: -- Double laser casting line -- Double-sided LED screen -- Accurate 360° angle measurement -- Frosted aluminum body -- Type-C fast charge lithium battery Brand name: DUKA/ATuMan Product name: LI1 Laser Angle Line Casting Instrument Product size: 120*20*35mm Product net weight: 70g Laser wavelength: 660nm Laser class: Class II Protection level: IP54 Indoor distance: ≤10m Horizontal accuracy: ±1mm/5m Vertical accuracy: ±1mm/5m Working temperature: -10℃~50℃ Storage temperature: -20℃~55°℃ Battery specification: 730mAh rechargeable lithium battery Working mode: absolute angle + relative angle Bracket: Mounting nut interface: 1/4" Suitable for any tripod with 1/4" screw interface Packing list: 1 x Angle Meter 1 x USB Cable 1 x Bracket(optional) 1 xEnglish Manual