No current flow is needed for correct operation
Locates breaks in cables at exact point where red glow disappears
Detects blown fuses inside plugs or fuse holders
Distinguishes between live and neutral wires in single and three phase supplies
Fits in shirt pocket
The instrument is so reliable in locating voltage that it will react to static energy by flickering. That is not to be confused with power company voltage which produces a steady glow.
U.S. patent # 5,103,165
Cat III (UL), Cat IV (TUV)
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