ELM327 OBDII Car Auto Diagnostic Scanner, Professional Wireless Bluetooth Scan Tool Failure Detector, OBD2 Engine Fault Code Reader for Android Windows, Car Accessories

Didn't work all that well. The bluetooth connection kept disconnecting.

Bought the two pack so I could keep 1 in my truck, and use the other to monitor stuff on my 2016 KTM 390 Duke with the other. Well, 1st, it took over a half a frustrating hour to get the things to pair with my phone & the Torque Pro app... Did this in the garage on the KTM, and FINALLY got them to work on it... Move over to the truck, no dice, they will not communicate at all with the truck ecu... Waste of time, money, and a lot of aggravation to boot. Thought they would be the exzct same as the one I had to replace after 10+ years, since they looked identical. Well they are not! If anything, I expected them to work in the truck & require a bit of fiddling on the bike since it has newed CAN messaging, but this was the complete opposite... What a pain in the butt!

I am pleased with this product. I needed to get my car smogged and my mechanic said I needed to drive 200 mile and 15 warmups. He said that would take about two weeks! I didn't have that kind of time and went to YouTube and learned I could do what I need in less than an hour. This ELM327 unit paired with Car Scanner app on my phone showed me everything I needed to get all the test to run and I got my car successfully smogged the following morning! You can spend a lot more money on other readers but why unless you are trying to use coding options.

These work perfectly with most scanner apps on my phone. I use mine with my 2023 F-250; it has no problems reading the numerous technical sensors & showing live data on the PowerStroke diesel. Great value depending on what you need the dongle for.

Much to my displeasure, I found out the hard way that these extremely inexpensive units do *not* work on all of the OBD protocols. You need to know what OBD protocol your vehicle or vehicles use before buying this unit. It works fine on many modern vehicles, however on many late 90s and early 2000s General Motors and Ford vehicles (and I am sure there are others), it simply will not work.

I've ordered 2 of these this year. Both will connect to bluetooth, neither will connect to ECU. I have an old one that i bought 10 years ago that works great and i wanted to get one for a family member. After buying this she one twice in convinced us a product issue. Would give zero stars if i could.

it has its problems, like frequent disconnection. but if you're actually reading OBDII codes for five bucks, you cant conplain. it would be spoiled to expect perfection at this price point

They work but hard to pair with some phones and tablets , Could get to pair with the tablet style head unit running android 13 I installed to use car scanner apps . Paired well with Samsung fold 6 & AlphaObd paid verison software VERY useful for Ram air suspension problems ! Get out of Plant or limp home mode without disconnecting battery .

Buen producto, buen precio y con muchas funciones.