The best budget OBD II scanners will naturally cross your mind as a car owner, especially in these wild, inflationary times. This is because the advantages of owning an affordable code reader are numerous and usually non-negotiable. The common challenge is what options are worth your time in a sea of many competitors, all calling for your attention (and wallet).
The first logical move is to take a step back and examine the lineup of affordable options before you.
This is no mean feat in itself. However, I’ll make it easier by presenting you with three (3) of the best options as tested.
These units are options I’ve owned and used over time (as a DIY mechanic), and I know their various strengths and weaknesses, like the back of my palm. Your final choice will be determined by your unique needs and tastes, however.
The above said, why should you trust me or even remotely take me seriously?
Affiliate Disclosure
I’m a participant in the Amazon Services LLC Associates Program. As an Amazon Associate, I earn from qualifying purchases by linking to Amazon.
Article Outline

Why Listen to Me?
The internet is a wild place: almost everyone comes to it to say things they know nothing about. And, unfortunately, this happens more frequently than you’d expect. Factor in some affiliate commissions (or some form of sponsorship), and everyone becomes an ‘expert’, crying out their lungs to be listened to.
So, why am I different? Why should you listen to me?
While I occasionally link to Amazon (and other companies) as a means of keeping the site online, I’m fiercely independent, as the other reviews you’ve read here prove.
That’s just the tip of the iceberg however: unlike most affiliate marketers who are simply interested in affiliate commissions, pulling off photos online, and writing about what they have no idea about, I’m an actual, hands-on DIY mechanic and only write about what I know about, via my experience fixing cars.
For instance, I have used all three code readers shared here and actively share my expertise regarding cars on YouTube, TikTok, and Instagram.
With my credentials and sincerity proven, what’s the importance of owning a code reader? Why should you consider buying (and owning) one?
The Importance of Owning a Code Reader
Auto mechanics aren’t the most honest bunch you’ll find around (just like in every other profession run by humans). While there are some awesome (and very honest) mechanics, there are some who live only to fleece you of your hard-earned money.
For instance, some mechanics will charge you for a timing belt replacement when your engine has a chain! It’s that bad!!
Or, charge you for something as simple as an oil change and NOT change the oil, or at best, change with the cheapest available variant (even when the weight isn’t recommended for your engine, temperature, and driving conditions).
Having an OBD II scanner or code reader, especially a simple, glove-box-friendly unit, will help you understand most of your vehicle’s challenges before taking them to the mechanic or calling one over.
If you meet a less-than-honest mechanic, you’ll be able to IMMEDIATELY call their bluff and save yourself (and hard-earned money) from being scammed.
There is no alternative, so far as this is concerned, irrespective of the type of vehicle owner you happen to be. You simply need to be able to have a means to communicate with your vehicle in the ‘machine language’ it speaks (and understands). Call it ‘carspeak’, if you will.
Now that you see the need for your own OBD II code reader (or scanner), what are the most affordable options open to you?
The Ancel AD410
The Ancel AD410 is one of the simplest, well-made, and practically indestructible code readers from the stables of Ancel, and for good reason, too.
It’s extremely easy to use and does what it says it will do, simply, without much fanfare (or drama).
I’ve owned the AD410 for about six years running now, and it’s one unit I have only good things to say about. Fewer units beat it at the game of basic code reading, especially on the go.
Here’s a detailed review of the unit; everything you need to know to make an informed decision is shared there.

Why You Should Consider the Ancel AD410
- The unit is small, ergonomic, and easy to use.
- There’s a standard DTC library for those codes you don’t readily understand.
- The 410 easily fits into the glove box of any vehicle you decide to use it on, from super minis to full-size heavy-duty trucks.
- The code reader is sturdy and solid. I don’t baby my unit, and it still works, without complaints, six years post-purchase.
Here’s the direct purchase link of the Ancel AD410 on Amazon. You should take a look.
The Foxwell NT301
The Foxwell NT301 follows the design language of the Ancel AD410, but takes things up a notch. The code reader is also slightly larger and, importantly, is designed with a rubber sleeve that protects the unit’s case, ensuring overall durability (especially when exposed to harsh, unforgiving environments).
However, what got me hooked on the NT301 wasn’t its physical attributes: it was its dedication to the auto DIY community (and all that self-repair represents).
Let me explain: instead of the standard DTC library like the 410, what the 301 has is an explanation of the codes, and further, what you need to do to get things up and running.
Essentially, thus, the code reader helps pinpoint faults and turns you into a DIY mechanic, someone a traditional mechanic CAN’T cheat on.
It truly is a beauty to hold, use, and keep around.
Here’s a detailed review of the NT301: I called it a BIG bundle of surprises.

Why You Should Consider the Foxwell NT301
- Large, colored display that is easy on the eyes.
- Wrapped rubber sleeve that protects the body of the scanner if it slips and falls.
- Explanations of what a DTC means (in addition to providing steps on how to resolve the challenge).
- Finally, the unit’s keys are the softest I’ve come across on a portable code reader: they easily bounce back when depressed and make the entire usage something the vehicle owner looks forward to.
Here’s the direct purchase link of the Foxwell NT301 on Amazon. You should take a look.
The TopDon TopScan
The TopDon TopScan isn’t a ‘physical’ code reader/scanner like the two shared above.
That the scanner isn’t ‘physical’ means it’s Bluetooth powered – and relies on an app and a smartphone to do its thing (the paired phone serves display functions).
However, it’s one smart OBD II code reader that I’ve come across, and for the price it retails, it’s difficult to get a better unit that does what it does.
The TopScan scans, accurately, the engine, tranny, airbags, ABS, and other modules in a seamless fashion (if offers all system scans). It also makes it super easy to perform occasional routine maintenance such as brake bleeding and oil resets.
With the newly added FCA AutoAuth, the TopScan truly proves that though it’s a small Bluetooth-powered unit, it’s truly ‘mighty’ when it comes to what it can do.
When I received the TopScan from TopDon, I mentioned that it was a scanner that would shock you. Today, I STILL stand by that position. You can read the review here.

Why You Should Consider the TopDon TopScan
- For the price, it’s difficult to get any option that remotely comes near what TopScan offers. It’s feature-packed and makes a ton of sense.
- Because the unit is Bluetooth-powered and relies on a dongle + app to do its thing, it’s super efficient to store, work with, and use.
- The various modules the unit scans make it suitable for professional use and make it, ultimately, a DIYer’s dream. It has nearly every feature/function you may need.
- Finally, the unit is bi-directional. Testing actuators and relays to isolate faults will remain straight and to the point.
Here’s the direct purchase link of the TopDon TopScan on Amazon. You should take a look.
FAQs
I’ve taken the pains to make sure that I offer my best with this article. However, given the human factor, there are points I may have missed. It’s also possible that reading through the article, you also missed some vital points, due to no fault of yours.
If any of the above is the case, the Frequently Asked Questions (FAQs) below will certainly do a great job of filling in.
1. Is a Cheap OBD II Scanner Worth It?
Whether or not a cheap OBD II scanner is worth it depends on what you’re looking for with vehicle diagnostics and ultimately, what you intend to achieve with a code-reading machine. For most vehicle owners, however, a cheap OBD II scanner is all that they need.
2. What Is the Difference Between a Cheap & an Expensive OBD II Scanner?
A cheap OBD II code reader/scanner differs from an expensive (OE-level scanner) in that while the cheap option skips many resets and manufacturer-specific tasks, an expensive OE-level OBD II scanner usually has it all. It’s the type of scanner dealers and serious DIY mechanics use. An inexpensive scanner is more likely to be used by regular car owners who just want to have a feel of what’s wrong with their cars before taking them in to the mechanic.
3. What Is the Difference Between an OBD II Scanner & an OBD II Code Reader?
An OBD II scanner usually scans all vehicle systems, including (but not limited to) the engine, tranny, ABS, security, TPMS and the SRS (airbags). It’s also capable of performing many resets and, in some instances, programming keys. A code reader, on the other hand, reads/deletes basic engine codes and, in some cases, is capable of displaying live data (nothing more).
The Best Budget OBD II Scanners (Under $100): Short Summary
The best budget OBD II scanners are the AD410, NT301, and TopScan. If you’re interested in an affordable code reader, any of the options presented above will serve: no unit will fail you from the options (especially if you’re on a budget).
That said, if you’re still confused, the guide below should help.
- If you’re looking for a basic code reader (that will be in your glove box) and, importantly, prize durability above all else, the Ancel AD410 is where you should be looking.
- If you’re curious about what the codes your device reads mean and would appreciate direct pointers in that regard, the Foxwell NT301 should be where your attention should be.
- However, if you’re a professional mechanic, a DIY mechanic, or one who will need to use your OBD machines beyond mere code reading, running advanced scanning, and doing ‘bi-directional’ runs, your best bet is the TopScan from TopDon.
- If you’re tied somewhere between the 410 and the 301, consider reading this article: Ancel AD410 vs. Foxwell NT301: which is a better bet?
While you’re here, you should consider taking a look at the best OBD II scanners for the bucks, generally. It’s an interesting read, especially coming from an auto DIY mechanic, and importantly, the list is segmented for easy assimilation.
Good luck.
Love the Above? Subscribe for More

Throttle Lan
DIY Mechanic and Freelance Auto Writer