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+1 0n the circuit tester. It's the best way to check for live circuit. Unless you've had considerable experience with a VOM it can sometimes fool you. The circuit tester senses current without having to touch any bare wires. And it's very simple and straight forward to use. Check it out on a wire that you know is live, like a lamp cord to make sure it is operational. Check the circuit, check it again then check it again. Treat that wire like a gun, figure it is ALWAYS live (loaded), until you check it, check it, check it.