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🚖【Easy-to-Use】This OBD2 scanner diagnostic tool requires no APP download and installation, no battery, no Bluetooth connection, just plug and play. 🚖【Broad compatibility】Upgraded built-in DTC Lookup Library with 9000 fault codes allows you to quickly and accurately diagnose engine trouble codes on your car. Our scan tool supports all OBDII protocols making it compatible with most cars since 1996. It supports 7 languages: English French German Dutch Spanish Italian Chinese 🚖【Battery Tester】This diagnostic tool not only reads and clears your car's engine fault code.It can also test and assess the performance of your car's battery,include: ①By measuring the battery voltage, you can understand the condition of the battery to diagnose other parts of the vehicle and provide a baseline condition.