48% under what the other stores charge
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The Eonon ELM327 is a low-cost Bluetooth OBD-II adapter that plugs into your car's diagnostic port and pairs with a phone app to read engine codes, clear the check-engine light and stream live sensor data. It is a basic ELM327 clone, so it handles standard OBD-II on most cars from 1996 onward in the US but not manufacturer-specific systems like ABS, airbags or transmission codes. Compared with wired USB adapters it is more convenient, and compared with pricier multi-protocol tools it is slower and less reliable on some vehicles. It suits DIYers who want a cheap first scanner for engine-light checks, not shops or deep diagnostics.
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Lowest price we've seen: $16.90 on Nov 11 at Amazon. Tracked across 3 stores since Nov 11.
Owners of cheap ELM327 adapters like this one generally report it works for basic engine-code reading and clearing, but results vary by unit and car. Complaints center on dropped Bluetooth connections and limited protocol support.
This is a Bluetooth ELM327 OBD-II diagnostic scan tool made by Eonon. It connects over Bluetooth for vehicle diagnostics.