Quantity: one piece Auto diagnostic kit: our OBD2 diagnostic device can display all current sensor data: determined engine speed, load value, coolant temperature, system status fuel level, vehicle speed, short term mixture control, long term mixture control, intake manifold pressure, run time. information, intake air temperature, air volume, fuel pressure, etc. Versatile car diagnostics: ① Check your car for troubleshooting or find out what needs to be repaired or replaced. ② With the appropriate APP, it is possible to unlock the hidden features of certain cars. Easy-to-use OBD diagnostic scanner: Improved unique design and universal inspection to fit more models, this which facilitates plugging and unplugging. The OBD2 diagnostic device car is connected via highly reliable WiFi. Simply use OBD through your smartphone, tablet or Windows PC app/software to turn it into a professional diagnostic device. WIFI OBDII Professional Edition: Compared to OBD traditional, performance can be improved up to four times. The WIFI connection is more stable and supports more diagnostic items. Small and light, easy to carry, this connection method also eliminates the dependency on data cables. Wide adaptability: supports all OBD2 protocols. It is highly compatible with almost all types of vehicles, suitable for OBD2/EOBD compliant cars and vans. Full Apps for iOS, Android (Dash on iOS, TrackAddict, OBD Fusion, DashCommand and most ELM327 apps on Android) Good Quality Product Note: Data are all manual measurement, please understand. please allow 1-3cm error; due to the light and display difference, there would be some color difference, please refer to the actual object received.