OBD ll Scanner Adapter for iPhone I am considering buying

Foseal OBD2 Scanner, WiFi OBD2 Scanner Diagnostic Scanner Check Engine Light for Android, iOS and Windows

https://www.amazon.com/Foseal-Scann...01MRH9KVA/ref=cm_cr_arp_d_product_top?ie=UTF8

Seems adequate. Am I missing something or am I good to go?

 

They work for the intended purpose. Can read values and give you data while you drive. Fairly cheap so what do you have to lose . The reviews on Amazon are a good real world testimony to so check those out.

 

Its just a dongle that feeds an app via bluetooth. The question is how good is the app?

I prefer a dedicated device like my SG II, and leave my phone unencumbered.

 

I suggest the Carista adapter for iPhone use. It is low power bluetooth so it won't block your network data while connected. It is compatible with Dash Command, OBD Fusion, and even Engine Link with a tweak I got from them.

Carista OBD2 - Bluetooth OBD2 Scanner and App - Car Scanner Diagnostic Tool and Code Reader with Access to Diagnostics, Customizations, Service Tools, and Live Data

https://smile.amazon.com/Carista-Bl...e=UTF8&qid=1489276004&sr=8-1&keywords=carista