... . ONE horizontal line and FOUR vertical line 2. Auto update level 3. Free feet accept adjust 4. With Alarm 5. Full ... turning Model Number: ZY/SA05-4V1H Description:Laser wavelength: 635nmLaser class: Class IIAccuracy: ±1/4"/100ft. (±1.0mm ... and Align: Walls, Doors, Frames, Stud Beams, Windows and Skylights; Level Electrical Outlets; Stud and Curtain Wall Plumbing, HVAC, Plumbing, Pipe ...