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What is a voltage detector?

Shop for Voltage Testers

A voltage detector is an electrician’s tool used to detect or test the voltages in varying circuits. An electrician may use a voltage detector to ensure a source is safe before beginning work.
non-contact voltage detector A detector is a device used to find or locate something, in this case – live electricity. Electricity detectors can also be referred to as testers, though their job is to detect.
Think like a detective... or rather think of a detective,  they find things.
voltage detector Most voltage detectors resemble pens, while others are slightly more box-shaped. However, both can detect live electricity without coming into contact with the supply.
voltage detector in use There are many names used to refer to these tools, they include: non-contact voltage detectors, non-contact voltage testers, voltage sniffers, power detectors, voltage pens and voltage detector pens.