Fuller | Johnson 12" Magnetic Digital Laser Level

 5 construction languages - units of measure (degrees, percent, mm/m, in/ft in decimal, in/ft in fractional)
LCD screen rotates for easy top reading
Automatic digit inversion for overhead measurements
Push button calibration
Backlight for easy-read in dimly lit work environment
Laser beam for transfer of reference points
Audible indicator for level 0° and plumb 90°
Working range 4 x 90°
Accuracy ± 0.1° at 0°, 90°