What is a voltage detector?
| | A voltage detector is an electrician's tool used to detect or test voltage in various circuits. An electrician can use a voltage detector to make sure the source is safe before starting work. |
 | A detector is a device used to find or locate something, in this case living electricity. Electricity detectors can also be called testers, although their job is to detect. |
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 | Most voltage detectors are shaped like pens, while others are box-shaped. However, both can detect energized electricity without coming into contact with the power supply. |
 | Many names are used to refer to these tools, including: non-contact voltage detectors, non-contact voltage testers, voltage analyzers, power detectors, voltage sensing pens, and voltage sensing pens. |
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