Circuit Breaker Signals

Samuel Morse was born in 1791. Fifty years later, he invented dashes and dots that spanned continents, reached across oceans and communicated with ships at sea. Those doing electrical work need communication, too, to know what’s happening at the other end of a circuit they’re about to tap.

Often they find out by trial and error or yelling “is it off yet?” Or listening for a radio to shut down or by running back and forth flipping switches. That practice can cause the need to reprogram digital clocks and computers.

But a new locator system now makes it safe and easy. Just plug its transmitter into an outlet or light with a screw-in plug adapter. Run the receiver unit over the switches or fuses until it lights and beeps, and there’s your circuit. No guessing, no trial and error. For about $30 you can pick the right one every time.

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