Johnson Level & Tool 1876-4800 Electronic Digital Box Level, 48-Inch Large easy-read electronic digital display features illuminated LCD Extremely accurate with .05 degree at 0 degrees and 90 degrees and quick horizontal and vertical calibration Angle inclination in 5 construction languages - units of measure (degrees, percent, in/ft (fractional), in/ft (decimal), mm/m Quick horizontal and vertical calibration and automatic digit inversion for overhead measurements Limited Lifetime Warranty: Johnson level warrants this product against defects in material and workmanship of mechanical parts for life and electronics for one year. The company will replace or repair the product if it fails under normal use. This warranty is limited to the repair or replacement of the product only.