Features: The product retains the CAN chip, which is matched with the CAN chip in the car computer, which can enhance the adaptability of the product and read the data stream more accurately. Powerful Check Engine Light Diagnostics. Can read and diagnose your check engine light, understand the severity of the issue, and clear fault codes. More functions compared to other simple scanner like Battery for Health Check, Freeze frame, O2 sensor test, On-Board Monitoring, Evap system test, Performance Test, Data Stream, and Diagnostic reports. It can Check the for health of your battery and voltage with a tap on your phone screen, so it is in great condition when you need it the most on a freezing winter day without opening the bonnet. Small size, highest chip integration, independent appearance. Clear the error code and turn off the MIL display current sensor data. Specifications: Material: ABS Size: Approx.4.3x2.5x3cm/1.69x0.98x1.18inch Color: Black/Blue Elm 327 wi-fi OBD-II protocol: SAE J1850 PWM (41.6 kbaud) SAE J1850 VPW (10.4 kbaud) ISO 9141-2 (5 baud initialization, 10.4 kbaud) ISO 14230-4 (5 baud initialization, 10.4 kbaud) ISO 14230-4 (initialization speed, 10.4 kbaud) ISO 15765-4 Pode (11-digit ID, 500 kbaud) ISO 15765-4 Pode (29-bit ID, 500 kbaud) ISO 15765-4 Pode (11-digit ID, 250 kbaud) ISO 15765-4 Pode (29-bit ID, 250 kbaud) 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. Package includes: 1x Car Diagnostic Tool