Circuit Tester Automotive, Power Circuit Probe Tester, Test Light Automotive with 40FT Cable, Car Fuse Tester, AC DC 12V 24V Car Diagnostic Tool, P100

This 12-volt power probe is a must-have for any do-it-yourself mechanic. I’m still discovering everything it can do, but it has already become one of the most useful tools I own. It’s been especially handy at the junkyard—hook it straight to a battery and you can power electric seats, windows, and locks without tearing anything apart. Being able to test circuits directly makes diagnosing electrical issues much faster. I’ve used it to find shorts, identify broken wires, and quickly power components like locks, radios, and windows to confirm they work. It saves a ton of time compared to traditional test lights or chasing wiring blindly. The tool feels solid, works exactly as advertised, and is incredibly convenient for both troubleshooting and testing. For the price, you really can’t beat it. This is one of those tools you don’t realize you need until you have it—and then you won’t want to work without it. Highly recommended.

Good quality works well highly recommend I use it for diagnosing issues in electrical problems on my vehicle vehicles

Great tester has everything I needed very high quality and a great value a must have for mechanics

Had issues. Seller made it right. Power probe is great. Checks ohms and send power and ground. Leads are long and work great. No problems with product after seller helped me.

I'm more new to automotive electric so this tool definitely was perfect for me. I was able to read the instructions and diagnose my cars wiring problem in no time. The light on it is very bright so that helped me in dark cramped spaces. It functions perfect for the price.

Works great as a power probe! Wire length is very long. Easy to use hook up ground and test or send 12 volts to what you’re needing to test.

I am enjoying this product using it on my 2002 Cadillac DeVille Dts and my 2005 Ford focus zxw recommend to all folks trying to build a reliable tool box for automotive work.

Works as described, Works great. I needed a fourth, because my $400.00 test probe master kit was picked up by a lucky driver, before I could turn around and get back on the highway 🤨,the other snapped at the end of the tester(my fault) the other shorted out internally, definitely toasted the mini electrical circuit board (probably should of realized it wasn't for 24volts on a Volvo alternator). The other is peeling or dissolving to high use. My wife bought me an advanced, extremely complicated new test probe master kit that looks like it does everything a laptop with software auto program can and I just haven't tried it after opening it and staring at it a minute, I just didn't know where to start it navigate that beast, so sometimes, on certain jobs,the cheaper, not so complicated ones work great (yes all woman are complicated, but tools don't have to be);