Ansbell Circuit Tracer DC 6-42V Professional
- Amazon now offers Ansbell Circuit Tester DC 6-42V Professional, now $21.59 (list price $39.99). Use promo code PEH68PFV at checkout.
- Prime members get free two-day shipping, and regular members get free shipping on orders over $35 within the contiguous U.S.
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Editor's Pick: Headlights not bright, fuses keep blowing, or new electrical gear won't power up? It's probably a broken or shorted wire somewhere. This circuit tracer plugs in, then red and green LEDs indicate the type of fault. You can also adjust the sensitivity, then follow the signal to pinpoint the issue. No more guessing which part to check—DIY diagnostic pays for itself after just one use.