| 摘要 |
A device is disclosed for testing electrical circuits. More particularly, a device is disclosed which operates to give a visual indication of both continuity and a live circuit path. The device includes a hollow casing having a conductive probe mounted at one end. A ground wire is connected to the opposed end of the casing. The testing circuit of the subject invention is disposed within the casing. The testing circuit includes a first light-emitting diode (LED) connected in a manner to pass electrical current between the probe and the ground. A second LED is provided which is connected in opposite polarity. A battery is provided to power the second LED. The battery and second LED are connected in parallel with the first LED. In operation, the first LED will be illuminated when there is a live circuit, while the second LED will be illuminated if the circuit is continuous. Neither of the LED's will be illuminated if the circuit is broken.
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