These types of angle boxes seem to be everywhere, but this new iGaging unit contains a U.S.-made, solid state angle sensor that also measures absolute level in addition to relative angles... in other words, it works like your 4ft long spirit level for straightening out cabinets, machines, and pictures on the wall, but at just over 2" square, you can carry it in your pocket.

Press the "Zero" button to calibrate it at any angle, and it measures to any other angle with 0.05 degree resolution... perfect for setting the tilt of table saw blades or the tables on band saws and drill presses. There's even a "Hold" button that saves the last reading.

Magnets on three sides of the sturdy aluminum case allow it to stick wherever you need it on your machinery or the side of your refrigerator. It uses a standard 9V battery, too, so you can find replacements anywhere (the unit ships with a battery pre-installed.)