This Car Diagnostic Scan Tool is easy to operate, only download an APP and connect Wi-Fi, you can diagnose the problems of your car, it can prolong the life of your car after solving these problems. It is worth for you to purchase this high performance Car Diagnostic Scan Tool! Diagnose Functions Read DTCs, freeze frame data, read vehicle information, oxygen sensor test, mode 6 test, EVAP system test, driving track, performance test, setting, history, etc. Simple Operation Download and install APP "iOBD2" and connect via Wi-Fi, you can diagnose the problem with your car. High Compatibility Compatible with iOS 4.1 system or above and Android system. iOBD2 Supported OBDII Protocols ISO15765-4 (CAN), ISO14230-4 (KWP2000), ISO9141-2, J1850 VPW, J1850 PWM, etc. Note: 1. Please verify that your vehicle is OBD-II/EOBD compliant before purchasing. 2. It only can connect via Wifi for Iphone/Ipod touch/Ipad/Android devices. 3. Not all vehecles with OBD-II/EOBD compliant are supported. iOBD2 Scanner Function: 1. Performance Gauges: 1. Engine speed 2. Corrected vehicle speed 3. Open/closed loop 4. Boost/vacuum combo gauge 5. Acceleration (and braking) Fuel Economy Gauges: 1. Inst. fuel economy 2. Avg fuel economy Engine Gauges: 1. Timing (spark advance) 2. Engine coolant temp. 3. Intake air temp. 4. Ambient air temp. 5. Manifold absolute pressure 6. Mass air flow 7. Fuel trims, short and long term 8. Percent engine load 9. Catalyst temp. 10. Fuel pressure 11. Lambda gauge 12. Air/fuel ratio Specifications Name Car Scan Tool Brand Xtool Model IOBD2 Package Weight 150g Package Size (L x W x H) 10 x 10 x 6 cm Package Content 1 x Car Diagnostic Scan Tool, 1 x User Manual