Jeekinz
Washing Up
...nope...hickup!
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keltin said:It can’t be a voltage or power (wattage) tester since there are not two probes. To test voltage, current, or power, you need two probes (positive and negative for flow). This thing seems to have a single input. A liquid tester such as breathalyzer, air pressure, fiber optics (single line for laser light)? This is interesting.
I could be a signal tester for a coax type cable if the center conductor was shielded from the grounding shield thus developing the two polarities in one single enclosure (case versus core).