to adjust the height of the tripod, smooth and effort saving.With fixed plectrum to control to extend length to lock it tightly.Suitable to most of level with 5/8" interface.Note:Please do not let the line shoots your eyes directly.The output maker is located at the output hole.Do not stare directly at the light.Do not disassemble the instrument and perform your own internal repairs.The instrument meets radiation safety standards.Specifications:Name: LevelMain material: plastics+metalBattery: 2* rechargeable lithium batteries, 3.7V, 2400mAh (included)Line type: 4* 360°, 16 linesWavelength: 532nm(Green)Self-leveling angle: ±3°Wall mounted distance: 7mmOperating temperature: -5 to 50Working ranges: about 20m in diameterWaterproof: IP54Level machine size(assemble with battery): 114* 135* 135mm/ 4.49* 5.31* 5.31inRotation base: 97* 83* 75mm/ 3.82* 3.27* 2.95inLifting platform size: 113* 92* 30mm/ 4.45* 3.62* 1.18inWall mounted bracket size: 160* 83* 75mm/ 6.30* 3.27* 2.95in1/4inch to 5/8inch adapter size: 23* 23* 34mm/ 0.91* 0.91* 1.34inClip holder: 63* 25* 27mm/ 2.48* 0.98* 1.06inPlastics box size: 235* 135* 273mm/ 9.25* 5.31* 10.75inTripod stand size: 470* 91* 86mm/ 18.50* 3.58* 3.39inItem weight: 2626g/ 5.79lbPackage size: 440* 255* 240mm/ 17.32* 10.04* 9.45inPackage weight: 3000g/ 6.61lbPacking List:1* Level Machine2* Battery1* Battery Adapter1* Rotation Base1* Wall Mounted Bracket1* Lifting Platform1* 1/4inch to 5/8inch Adapter1* Clip Holder1* Remote Controller1* Guideline1* Plastics Box1* Tripod Stand