[AVOID RIP-OFFS & EASY TO USE]:Walk into the repair shop confident with the accurate info you need to save on car repair. The BD200 bluetooth obd2 scanner and ANCEL app provides helpful how-to guides and video tutorials on the Help page so you can save with DIY repairs. No need to worry about complicated processes, easy repair work even if you are a beginner. [CHECK ENGINE TROUBLE CODES]:Monitor live real time live gauge data direct from your autos computer system with our diagnostic trouble code reader (DTCS) such as fuel pressure, Engine load & more; Freeze frame data; Making it extremely easy to check up on the health of your vehicle just like the pros. Quickly determines the cause of engine system faults, reads current and permanent codes, clears the codes and turns off the engine warning light [TEST BATTERY VOLTAGE]:When your car can't start normally, there may be a problem with the car battery. The obd2 scanner bluetooth can detect the battery voltage in real time and