Features: Practical multifunctional diagnostic tool for obd2 scanner with built-in OBD2 lookup-library, which can help you determine the-cause of engine lights, read codes, delete codes, inquire fault code information, check the freezing frame, read data-flow and playback functions, read real-time curves, read vehicle information, calculate load value, engine-coolant temperature, and get engine speed. Support automobile battery voltage-test and oxygen sensor test. Breaking the traditional concept of automobile obd2 code reader, redefining it, and adopting 2.8-inch IPS-color OBD2 display screen, it is fashionable in appearance and comfortable in hand. OBD reader gets-power directly from your vehicle through OBDII data-link connector. The red light represents the power-signal light: the yellow light represents the fault code signal light, and the yellow light is-on when the fault code is detected: the green light represents the connection adapter signal light. When the product is matched-with the car, the green light is-on, and the green light is off, which means-the model does not match. Specifications: Material:Plastic Size:Approx.16.8x2.5x8.9cm or 6.61x0.98x3.5inch Color:Black Working voltage: 9-16V Model: V317 Working environment: -20-65 Storage temperature: -30-80 Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Car Diagnostic Scanner