Johnson's durable &accurate 24" digital box level is the perfect addition to your toolbox. Its "EZ-Read" backlit display is highly visible on both the dimmest &the brightest jobsites, while the digital measurement reading will automatically invert for convenience when you are taking overhead measurements. This level can show five units of measurement - degrees, percent, in/ft (fractional), in/ft (decimal) &mm/m - &has an accuracy of 0.1 at 0/90. Durability is also never a concern with this level - its rigid box frame resists deflection &twist, shock-absorbing end caps protect the level when it is dropped &the solid block vials were designed to never fog, leak or crack. It comes with a soft-sided pouch to keep your tool clean &safe when not in use.