Swanson SAVAGE SVT200 Digital Torpedo Level, 3-Vial, 9 in L

The SAVAGE cents digital torpedo level is very easy to use. The digital level doesn't rely on the user to determine if a bubble is accurately between two lines and it has an audio alert when it achieves level or plumb. The digital level is the most accurate on the market with a 0.029 deg accuracy. It is nearly 3X more accurate than the most accurate spirit levels on the market. Other features include an automatic shut off after continual non-use, so it does not to waste battery power. Also, if turned upside down, the screen will automatically adjust so you can read it without any problems.