Quantity: one piece Auto diagnostic case: Our OBD2 diagnostic device can display all current sensor data: determined engine speed, load value, coolant temperature, system status fuel, vehicle speed, short term mixture control, long term mixture control, intake manifold pressure, running time. information, intake air temperature, air volume, fuel pressure, etc. Versatile car diagnostics: Check your car for troubleshooting or find out what needs to be repaired or replaced. With the appropriate app, it is possible to unlock the hidden features of some cars. Easy-to-use OBD diagnostic scanner: Upgraded unique design and universal inspection to fit more models, this which makes plugging and unplugging easier. The OBD2 diagnostic device car is connected via highly reliable WiFi. Simply use OBD via 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. WIFI connection is more stable and supports more diagnostic items. Small and lightweight, easy to carry, this connection method also removes the dependence on data cables. High adaptability: supports all OBD2 protocols. It is highly compatible with almost all types of vehicles, suitable for OBD2\/EOBD compliant cars and vans. Full-featured apps for iOS, Android (Dash on iOS, TrackAddict, OBD Fusion, DashCommand and most ELM327 apps on Android) Good quality product Note: The data are all manual measurements, please note: please allow 1-3cm error; due to the difference in light and display, there would be some color difference, please refer to the actual object received.