A fault code names a symptom, never a cause · review
A plain, plug-and-play engine code reader whose selling point is protocol completeness — the maker names the protocols explicitly, which several tools at this price do not.
The bottom line Bought for what it does not need: no app, no pairing, no subscription.
A self-contained code reader with an LCD screen and a cable. Plug it into the socket, turn the ignition on, read the codes, clear them if you decide to.
Most listings at this price say “works with all cars after 1996” and stop. Strex names the protocol set, including KWP2000, and that specificity is the difference between a tool that connects to your car and one that shows a dash. It is the single most useful thing published about it.
Engine system only, no live graphing, no service resets. A reader of this kind answers one question — what code is stored — and answers it without a phone.
The size of its code description library, and whether it is updated. Neither changes what the tool can reach.
On sale at around 30 € on the German, French and Italian Amazon stores at the time of checking.
Listed but with no offer on the Spanish Amazon store — the reference exists there and nobody is currently selling it.
Not found on the American and British Amazon stores, where the buy link falls back to a local search rather than to a page that does not exist.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on 4 September 2026. The live price is at the top of the page.
| Systems reached | Engine — stated |
|---|---|
| Display | LCD screen, stated |
| Protocols | Full OBDII protocol set including KWP2000, stated |
| Vehicle coverage | Vehicles built from 1996, stated by the maker |
| Operation | Plug and play, no pairing or app, stated |
| Amazon reference | B0DT12F8BK (same reference on 4 Amazon marketplaces) |
| EAN | 8721098880467 |
A car answers on one of several OBDII protocols, and a reader that only implements some of them will fail to connect on the cars using the others — while looking identical in the listing. A maker who names them is telling you something.
It is more reliable and less capable. It boots in seconds and works with a flat phone; it will never show what a good app shows on a large screen.
Engine system only · 2.8-inch colour screen · live data · battery test · 8 languages
The cheapest way to stop guessing at a warning light: engine codes, freeze frame and live data on a colour screen, with a battery voltage test thrown in — and no access to ABS or airbag, which the maker states plainly.
Best for: A first reader for a household that wants to know what the light means before phoning a garage.
≈ 20 €
Full-vehicle scan stated · 6 reset services · Bluetooth 5.0, 10 m stated · AutoVIN · battery voltage monitoring
A Bluetooth box driven by its app rather than a screen, sold on two things a plain reader does not have: a scan across vehicle systems and six of the common service resets.
Best for: A home mechanic who already reaches for a phone and wants resets rather than just codes.
≈ £37 / 45 €
Engine, ABS, airbag and transmission stated · 7 reset functions · Android 8.1 touchscreen · 32 GB · lifetime free updates stated
The tool where the update policy is the headline: LAUNCH states lifetime free updates on a four-system scanner with a touchscreen and seven service resets.
Best for: Someone who works on several cars, or on one car with an ABS light.
≈ £189 / 176 €
