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/6.61x0.98x3.5inch Color:Black Working voltage: 9-16V Model: V317 Working environment: -20~65℃ Storage temperature: -30~80℃ Package Includes: 1x Car Diagnostic Scanner note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.