
Short Circuit Finder for Continuity Testing
Have trouble with headlights not turning on, power windows malfunctioning, or the cigarette lighter not working? This multifunctional automotive circuit tester helps diagnose common electrical faults such as short circuits, open circuits, poor grounding, abnormal voltage, and continuity issues. It quickly locates problem areas without repeated disassembly, helping save time and effort during repairs.
LCD Test Light with Accurate Voltage Reading
Equipped with a backlit HD LCD screen, this car voltage tester provides real-time voltage readings with accuracy up to ±0.2V, making small voltage changes easier to detect. The built-in LED light helps you test safely and clearly in dark engine bays, under dashboards, or other tight spaces.
Fuse & Voltage Tester, Easy to Use
Beginner-friendly and simple to operate. Connect the red clip to the battery positive terminal and the black clip to the negative terminal. Once powered on, the voltage value appears instantly. Touch the probe to check continuity, voltage status, polarity, fuse condition, short circuits, and open circuits. The buzzer alerts you when overload is detected to help protect the tester and battery.
14.7FT Extension Cord for Full Vehicle Reach
The flexible 14.7ft extension cord allows you to test the engine bay, fuse box, dashboard, rear lights, trunk area, and other hard-to-reach circuits without constantly repositioning the battery clips.
For DIY Users & Professional Mechanics
Compatible with 6V–36V DC systems, this automotive power circuit probe tester is suitable for cars, pickups, motorcycles, trucks, boats, SUVs, trailers, and more. A practical diagnostic tool for DIY car owners, repair shops, and professional mechanics.
895 in stock
Automotive Power Circuit Probe Tester 6–24V DC, Fuse & Voltage Tester with LED Short Circuit Finder
Automotive Power Circuit Probe Tester 6–24V DC, Fuse & Voltage Tester with LED Short Circuit Finder
4.88 / 5.0
(17) 17 total reviews
Couldn't load pickup availability
- All components inspected
- 30-Day Returns
- Quick assembly

FAQ
01 What is this automotive power circuit probe tester used for?
This automotive power circuit probe tester is used to check voltage, power, ground, continuity, fuse condition, open circuits, and short circuits in vehicle electrical systems. It helps diagnose problems such as headlights not working, power windows failing, or cigarette lighter power loss.
02 Can this circuit probe tester check voltage?
Yes. The tester includes an LCD screen that displays real-time voltage readings, helping users check voltage status and detect abnormal voltage changes during automotive electrical troubleshooting.
03 Can this tool help find a short circuit?
Yes. It can help identify short circuit conditions, open circuits, poor grounding, and continuity problems. The LED indicator and buzzer feedback help guide users during testing.
04 What areas of the vehicle can the long test cord reach?
The 14.7ft extension cord helps users test the engine bay, fuse box, dashboard, rear lights, trunk area, doors, and other vehicle circuits without constantly repositioning the battery clips.
05 Who is this automotive circuit tester best for?
It is useful for DIY car owners, repair shops, mechanics, electricians, and technicians who need a practical tool for checking vehicle circuits, fuses, power, ground, and voltage.
- 5 stars: 15 (88%)
- 4 stars: 2 (12%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
I generally don't have problems with my vehicles but every now and then somethin pops up that really is super elusive. The backup camera on my wife's Honda stopped working, and I could not find the problem. Enter the Ansbell power circuit probe tester. I popped this great tool out of the box and within 15 minutes, the break was traced, isolated and repaired. The quality of this tool and accessories is fantastic. I wish that I had this years ago, it would have made my life so much easier, especially when I was trying to track down some wiring problems on my golf cart. The price is surprisingly low. What a great value! Recommended
Review for: Ansbell Power Circuit Probe Tester 6-24V DC Multifunctional Automotive Circuit Tester Car Test Light, Fuse Test & Voltage/Continuity Tester for Electrical Short Finder, Trailer Light/Break Finder 2506-049
Wish I could of had this sooner. Working great
This tester is great! It made troubleshooting my gauge issue super easy. Wish I had one earlier.
I use this daily on car audio and automotive work over all quality is durable. I love how it tells you the volts and is not like your typical test light that just lights up. Easy probe a wire. The size is perfect to handle and store in the tool box.
Excelente producto. Excelente calidad. Recomendable.
Nice product for the price Bought to find broken wire in seat belt srs system .
Love this product I was able to locate my electrical problem
Thank very good
Es práctico no ocupa mucho espacio de almacenamiento
Pero sobre todo para e ayuda a identificar el problema
I’m really happy with this circuit tester. It’s lightweight and easy to handle, and the blue color makes it easy to spot in my toolbox. I’ve used it on both 12V and 24V systems and it worked exactly as expected. The probe feels solid, and the light is bright enough to see clearly, even in low light. Cable length is perfect. It’s great for checking fuses and tracking down electrical shorts without any guesswork. For the price, it’s a good value and seems durable enough for regular use. I’d recommend it to anyone who needs a reliable tool for basic automotive electrical testing.
I got this to help test wiring issues on an old Chevy I’m restoring, and it’s been super handy. It works on 6V, 12V, and 24V systems, so I can use it across different things without switching tools. The probe is sharp, accurate, and the indicator light is easy to see ... even when I’m working outside during the day. I’ve used it to check voltage, test fuses, and trace down shorts ... it’s made the whole process quicker and a lot less frustrating.
Also, it feels sturdy enough to toss in a toolbox without worrying it’ll fall apart. I’ve already dropped it a couple of times on concrete, and it’s still working just fine ... so that’s a win in my book. For the price, it’s a solid little tool to keep on hand ... especially if you’re working on older vehicles or dealing with electrical gremlins 😂 Overall, it's a great value for what it does.
I like to do my own car repairs whenever I can - it's fun, saves money, and is satisfying. My cars are generally newer, so the repairs these days have been few and far between. But my daughter bought a 20 year old Ford pickup truck and getting this street legal and back on the road has become a family project. I have a great high-end multimeter that I use for a variety of other projects around the house (and sometimes at work), but I wanted a basic separate unit that's sufficient to handle work on my cars -- and my daughter's truck. This automotive "multi-function drive tester" fits the bill perfectly.
It's solidly built and feels like it should hold up for years. The included wires are quite long, and long enough in fact so that I can have the clips on the battery terminals up front and bring the tester around to the back of the car (or truck) to test the circuit by the tail lights. Nice! In this respect, it's outdoing my other "professional" multimeter, as I simply don't have probes for that one with wires anywhere near that long.
The product is perfect for the purpose. While it doesn't have a lot of other functions like my big multimeter does (e.g., capacitance), it has what you need for work on a car or truck. 90% of the time you'll be checking either polarity or continuity, and that's exactly what this tester is designed to do. It's great that you can use it to test grounding polarity, and the warning circuitry helps protect you if there's a surprise voltage beyond 36V - although frankly you should never see that in a car or truck. The vast majority of the time you'll be dealing with 12V.
The battery terminal clamps are well-sprung -- easy to open, and hold on effectively to the battery terminals. The digital display is nice (and easier to read than on my fancy multimeter!). The skinny pointy probe is great for reaching into lightbulb sockets, switches that are still installed in place, and your fuse panel.
It took me a bit of time to read and re-read the included manual. While it's thorough and nicely printed, I suggest that some help with improving the translation to English would make it even better. But frankly with a bit of time and patience, it's not hard at all to figure out the included instructions. But I can imagine this being a bit of a challenge for some folks. Improving on this translation would push my rating up to 5.
Overall - I really like this product. It will wind up with a long-term "home" in my car trunk (or my daughter's truck glove box!), as that's where we'll be using it.
Here is what I'll say, it works. What I really needed, was 110 Volts for household use. However, because I either misread the ad or the wording was unclear I ended up with this product. But it's not a complete loss since I also work on cars, so I had to go out and test it right away. I tested it against the current model that I'm using and to be honest I'm quite impressed. I suppose that even an accidental purchase can yield good results. Certainly the manufacturer here thought of about everything because it has some pretty cool functions. To be honest I think I'm going to use this meter as my main meter for my automotive applications. I find the value and sensitivity of the meter to be spot on. I really couldn't find anything wrong with it in fact everything including compact nature of it is spot on as well. I guess that just goes to show that for every door that closes another one opens, and being a glass is half full guy rather than half empty, actually worked out here. I have to give credit where credit is due a great job on manufacturing it is definitely durable and appears to be quite accurate. An excellent Buy across the board. I recommend.
The tool itself looks and works great, it performs as advertised, and is very handy for testing voltage, continuity, fuses, and more. I’ve used it on 12V systems, and it helped me track down electrical issues quickly.
However, I’m giving it 4 stars because I’m pretty disappointed with the quality of the clamps and cable. They look and feel cheap compared to the rest of the unit, which is otherwise solid. With better build quality on those components, this would easily be a 5-star product. Overall, still a useful and functional tester for the price.
Needed this to troubleshoot a bunch of older equipment i have (bobcat, excavator, some older atv's from the 80's, older outboards, all with none of the computer junk) all pretty simple machines. Every time i watch a video i see them using these. I tested some gauges tonight on my bobcat and a couple circuits and found this easy to use. The battery clamps have a strong grip, construction seems sufficiently robust. If you find yourself needing to troubleshoot basic 12v-24v circuits you need these, there's a lot of good video's online that explain how to troubleshoot with these i found helpful.
Example to test my bobcat temp gauge, i connect the probes + and - to correct battery terminals. Probing the gauge terminals tells me which is receiving 12v and which is negative (polarity). Grounding out the gauge sensor terminal by using the negative button on the probe made the gauge peg to hot showing the gauge was at least working.
I bought this fuse tester to make checking my car fuses easier, and it's been a game-changer. It's super easy to use, It's small enough to keep in the glove box, so I'm always ready to check a fuse if needed. Highly recommend it to any car owner!
I bought this fuse tester a few weeks ago, and I’m really happy with it. I tested a few fuses in my car, and it worked perfectly. The LED light is bright and easy to read, even in the dark.