... vertical line 2. Auto update level 3. Universal level bubble 4. With Alarm Model Number: YX-SA12 -1V1H Description:Laser wavelength: 635nmLaser class: Class ... and Align: Walls, Doors, Frames, Stud Beams, Windows and Skylights; Level Electrical Outlets; Stud and Curtain Wall Plumbing, HVAC, Plumbing, Pipe ... , Magnetic frame, BatteryNormal Packing:PVC Blister 1V1H Green Liner/Lithium Laser Level (1)