The 10 inch Digital LaserTrac Level uses digital technology to clearly read the angle of the tool to the 1/10 of a degree. Reads right side up or down. Audible tone identifies angle in 45-degree increments from 0 to 90 degree. 10 inch Digital LaserTrac Level recalls last 9 measurements, calculates degrees between two angles, projects bright red laser dot accurately to 1/4 inch at 100 feet. Use tripod threads or hang magnetically. Weight 1.2 lbs.