UNI-T LM520 LM530 LM550 Laser Level 2 Lines 3Lines 5Lines 360 degree Self- leveling Cross Laser Level Red Lines Laser LevelSize: 115mm*145mm*60mm Measurement Model: 5 lines Model Number: LM520 LM530 LM550 Precision: + 1mm 7m Wavelength: 635nm(Down to the point : 650nm) Brand Name: UNI T Type: Vertical & Horizontal Lasers Feature: 360 degree laser level Feature 1: laser level self leveling Feature 2: lines laser level self leveling Feature 3: 3d laser level self leveling 360 horizontal Measurement Model: 2 lines 3 lines 5lines