This magnetic programmable digital torpedo level is accurate, versatile & easy to use. Its backlit LCD provides easy viewing & automatically inverts when used overhead. The level has four units of measurement (degrees, percent, inches/feet in decimals & fractions, & millimeters/meters) & features both preprogrammed & custom modes, making it the only level you'll need for any number of uses. The powerful rare earth magnets adhere to any ferrous metal surface for easy, hands-free use, while the level's V-groove allows the frame to fit effortlessly on pipe & conduit.