The Armada Technologies PRO30 Digital Multimeter is a general purpose multimeter for identifying wiring faults. Test capability includes resistance, amperage, and either AC or DC voltage: e.g., by setting the PRO30 to VAC, then inserting it into a wall outlet, you can quickly determine the actual voltage available (or whether or not there is any voltage at all) at that outlet. The leads (or red and black cords) wrap around the body of the tester and snap into place when they're not in use, keeping them organized and out of the way.