I don't know about you, but I've spent a lot of time standing at the service panel flipping breakers while straining to hear a co-worker in another part of the house shout when I finally cut power to the line we needed to work on. Doing this alone is even harder. I used to plug my drill into a receptacle and leave it running while I went to the panel. When the drill stopped, I knew I had the right breaker. Now all this trial and error is easier with a two-part device called the Circuit Finder. A light flashes on the transmitter when it's plugged into a live receptacle. The hand-held, batterypowered receiver picks up a
