1. WiFi error code diagnostic device for diagnosing and troubleshooting cars. The scanner reads trouble codes (both generic and manufacturer-specific) to identify faults and possible solutions, and provides real-time data on speed, coolant level, fuel status, temperature, air flow, oil pressure, ignition, etc. 2. Easy to use - The adapter connects to the car's port and links to a mobile phone, tablet, or laptop via WiFi. 3. Advantage with WiFi: significantly better range than Bluetooth and USB connections (Note: the WiFi diagnostic device is intended for iOS/Apple devices and is not recommended for Android.) iOS apps can be downloaded from the App Store, such as OBD Car Doctor. 4. European gasoline vehicles from 2000 and all diesel cars from 2003 have a port. Check this before purchasing the diagnostic device if in doubt. The sensors that can be read depend on the make and model. 5. Supported protocols: SAE J1850 PWM (41.6 kbaud), SAE J1850 VPW (10.4 kbaud), ISO9141-2 (5 Baud INIT 10.4 kbaud), ISO14230-4 KWP (5 Baud), ISO14230-4 KWP (Fast Init 10.4 kbaud), ISO15765-4 CAN (11 bits ID 500 kbaud), ISO15765-4 CAN (29 bits ID 500 kbaud), ISO15765-4 CAN (11 bits ID 250 kbaud), ISO15765-4 CAN (29 bits ID 250 kbaud), SAE J1939 CAN (29 bits ID 250 kbaud), USER1 CAN (11*bit ID 125 kbaud), USER2 CAN (11* bit ID 50 kbaud).