The StarAutoLink ELM327 V2.1 Bluetooth OBD2 Scanner is a compact and powerful tool designed to transform your Android device into a full-featured vehicle diagnostic system. Plug it into your vehicle�s OBD2 port, connect via Bluetooth, and use a compatible app to read engine codes, clear faults, and view real-time sensor data. This scanner supports all major OBD2 protocols, making it compatible with a wide range of vehicles�petrol cars manufactured after 1996 and diesel models after 2001. It�s especially useful for reading CEL (Check Engine Light) warnings, monitoring fuel trims, RPM, coolant temperature, air intake, and more. Unlike bulky handheld readers, the ELM327 is small and wireless, making it ideal for use on-the-go or as part of your routine maintenance. It's a plug-and-play device with no internal battery�powered directly from the vehicle�s diagnostic port for hassle-free operation. Perfect for mechanics, DIYers, and vehicle enthusiasts, the StarAutoLink ELM327 Scanner offers an affordable and easy way to maintain your car, bike, or truck's health right from your smartphone.