ELM327 OBDⅡ Car Auto Diagnostic Scanner, Professional Automotive Bluetooth Scan Tool and Code Reader, Universal Vehicle Interface Adapter Diagnostic Tool Scanner

Just an add on to the dudu7 head unit best stuff ever

This thing may work well on Android but I couldn’t get it to work on iOS. I am giving a 1 star because of the sneaky scammish way they hide the fact it doesn’t work on iOS. It’s buried on one of the picture slides towards the end at the bottom with little contrast. (So it is hard to see) even ai multiple systems say do to protect description it looks as though it should work.

I'm still trying out this item

As long as you follow the instructions, & have your phone & computer synced, this little 5$ peice of plastic will give information that only a good car guy can understand. Pay the extra 5$ for life then you can scan multiple cars, & get more information only the good car guy can understand. It's better than going to the dealer just to hear Goober tell you that you need'Blinker Fluid'. Know what's wrong ahead of time !

Both worked and are good for reading and clearing codes, but if left connected it will introduce communication error codes and crash the entire bus. It's not perminate. Just clear the codes and the vehicle is good again.

One does not work the 2nd one does. Buyer beware knowing you can receive one that does not work. One works as it should.

Bought these as a replacement as my old Bluetooth scanner gave out after 5 years. Used them for the first time beginning this new year and both devices don’t work !! Cheap no reason for them to go bad if not using at all

Works as expected for the price. Helps a lot with codes.