If you're in the electrical industry, there's no doubt that you'll require the use of a multimeter. They're generally a small hand held electricians tool, used to check and test current and voltage. They're a sure fire way of locating faults in a myriad of electrical wiring systems - be they domestic, industrial or related to small electrically powered devices.
They come in a variety of styles - as well as prices and models. Most of the smaller ones can be purchased for well under 20 dollars - though the bench multimeters can set you back quite a bit more.
The five best multimeters are featured below. They're all highly rated, appear on the best seller list in their specific category and deliver on both quality and design.