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Car Electrical Circuit Voltage Test Diagnostic Pen

20 reviews
100% of buyers enjoyed this product! 1759 orders
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100% brand new and high quality
It is flexible and does not deform easily.
It is easy to operate with the pen shape.
Digital display allows you to see the voltage more clearly.
Needle test head can be conveniently connected to the clamp.
Designed to detect low-voltage circuit faults in transportation machinery.
Indicator design is helpful to detect the positive and negative poles of the battery or circuit.
Support short-circuit and open-circuit test, ignition system test, engine performance test, charging system test, automobile battery performance test, circuit polarity discrimination test.
It can be used for cars, motorcycles, bulldozers, rollers, excavators and other transport aircraft maintenance operations.

Voltage test range: 2.5-32V
Material: Plastic + Metal
Display: Digital LCD Screen
Size: Shown as Picture
Cable Length: Max.2.4m

Package Included:
1 x Car Electrical Circuit Test Pen


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

20 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
13 Jan 2021

Does what it supposed to excellent product fast delivery!!!

verifed buyer
13 Jan 2021

a must have product for any car electrical repair, makes it so easy

verifed buyer
12 Jan 2021

it does the job and the price is perfect

verifed buyer
12 Jan 2021

This was a great investment. Once you figure out how to use it, it's great. I had to watch a few YouTube videos in order to understand exactly how it was working. Once I did, it worked great.

verifed buyer
21 Dec 2020

Seems to work really good and way cheaper than Snap On. Only thing is I would change out the Alligator clips do some thing a little less cheap

verifed buyer
10 Dec 2020

Bought this to test compressor clutch and other automotive issues. Works just as good as the more expensive ones.

verifed buyer
5 Dec 2020

I used the power probe the day I got it to locate a short in my riding mower. The probe works great and saved me a lot of time. I could not believe the low price and figured it would be junk but took a chance and ordered it and am I glad I did. The probe is very good quality and will be on my work bench for years to come. If you need a basic power probe, this probe is for you!

verifed buyer
3 Dec 2020

My children bought me a Power Probe as a gift a while back and it was amazing. I wanted a less expensive tool like it I could take for mobile repair work. This has done everything I’ve needed. Like Power Probe, it has an auxiliary ground and has a momentary switch to supply power. Very handy. It paid for itself with the first use.

verifed buyer
30 Nov 2020

Works very well as a test light and also displays voltage rather than just a bulb lighting up with a standard test light. Also the ability to hook the alligator clips to the battery and be able to add 12 volt power or a ground to a given circuit or accessory is also very useful when trying to trouble shoot electrical issues.

verifed buyer
24 Nov 2020

This unit works great for the function of witch it was designed. Don't spent a lot of money on the same thing from other brands this one works just as good.

verifed buyer
8 Nov 2020

I can't begin to tell you how useful this thing has been for me. I've got a terrible wiring mess on a wrecker I've been working on and I put power to a bundle of wires one wire at a time until the light at the back of the truck I was searching for in the bundle lights up. Can't complain about this purchase.

verifed buyer
7 Nov 2020

Had a short in a John Deere Tractor, This help a great deal. I would recommend this tool.

verifed buyer
23 Oct 2020

Seems to be pretty quality even though it is made in china. Has a very long power lead that disconnects. The tip also comes off for storage. These things are a must have if you do much electrical troubleshooting on automotive, class 8 trucks, or marine. They save you tons of time allowing you to power up individual components, test relays and verify continuity.

verifed buyer
20 Oct 2020

Okay, so any old light bulb can be a test probe. But this one has features that make it a needed upgrade from your standard "is it hot" probe. No need to switch leads around to test for ground or hot, just probe and look at the light color. And more - you can even test components not in the vehicle, etc. Also, the long leads are helpful (I used it to solve a wiring issue in the tail lights of an old truck with an 8 foot bed.)

verifed buyer
10 Oct 2020

The device is pretty awesome to use when testing fuses and even the starter in a car. The only thing is that you will try to maybe use this on a car, but because it is drawing from the battery (assuming you're using it when the car is NOT on) then you can drain your battery of applying the 12v to a circuit.

verifed buyer
8 Oct 2020

love the light glows nicely and bright love the prime shipping to thanks for a great product

verifed buyer
7 Oct 2020

For automotive work, it is very useful and it works very well. I recommend!

verifed buyer
6 Oct 2020

I have a vintage suzuki,sat in my backyard for 12plus far I've put $800into getting it running.ibe still had a few issues here and there.wish I would've bought this when I initially started getting it running. Now it's one of my favorite tools it's indispensable wish I would have gotten it a whole lot sooner though

verifed buyer
18 Sep 2020

Might have to watch out as to not stabbing yourself but the probe is going to be a real handy tool for troubleshooting old car is if only I had an old car now, Like I used to.

verifed buyer
14 Sep 2020

Does what it is supposed to do. Recommend.

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