KONNWEI OBD II adapter is a powerful car diagnostic tool developed 1:It is compliant with full OBD II or EOBD specifications. Various wireless connection modes to connect your smartphone or pad. 2:It reads the real-time car engine data, such as engine speed, ignition time, fuel trim, water temperature, fuel consumption. 3:It support a variety of OBD II apps. KONNWEI OBD II adpater is a high-quality automotive Bluetooth 4.0 OBDII scanner. Features: 1. CLEAR CHECK ENGINE LIGHT - This iCar Pro code reader will help you save money and accurately diagnose check engine light problem. Very easy to use. 2. EASY FITMENT - The majority of cars made in the past 2 decades are fitted with an OBD2 diagnostic port, simply find the port and plug the iCar Pro in. 3. FIT AND FORGET - It really is possible to fit and forget beacuse it's micro size and unique power saving functionality that protects your battery 4. WORKS WITH HUNDREDS OF APPS - The KONNWEI Pro Bluetooth Low Energy device works with the most popular OBD apps. Please find download instruction for Android device in product description. Functions: Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning. (over 3000 generic code definitions in the database). Clear trouble codes and turn off the MIL (