With new digital technology, Craftsman LaserTrac levels clearly read the angle of the tool to the 1/10 of a degree. They read right-side up or down. An audible tone identifies the angle in 45 degree increments from 0 to 90. They can also recall the last nine measurements, calculate the degrees between two angles, and project a bright red laser dot accurately to within 1/4 in. at 100 ft. These digital LaserTrac levels from Craftsman help to make all of your projects easier.