Swanson Tools Savage 9 in. Digital Torpedo Magnetic Levels
The digital level doesnt rely on the user to determine if a bubble is accurately between between two lines, and it has an audio alert when it achieves level or plumb
Highly accurate with a .01 accuracy
Other features include an automatic shut off after continual non-use, so it does not to waste battery power
If turned upside down, the screen will automatically adjust so you can read it without any problems
Using a digital level is common in the concrete industry where a high level of accuracy is a must, and where pitch is exact