Test Light "Look Ma! No Ground Clip!
General Technologies Corp GTC CT8002 Cordless Circuit Tester 4.6 out of 5 stars 53 customer reviews | 3 answered questions Price: $18.78 Free Shipping for Prime Members In Stock. Want it tomorr...
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I have heard of DC voltage proximity sensors.
I even ordered one on eBay, which didn't work. A DC voltage on a wire would cause an electric field near the wire but it would be hard to detect in comparison to the Earth's E field and I expect it would be expensive.
I even ordered one on eBay, which didn't work. A DC voltage on a wire would cause an electric field near the wire but it would be hard to detect in comparison to the Earth's E field and I expect it would be expensive.
