Applicable to all OBD II compliant vehicles (USA / Europe / Asia). It supports all OBDII protocols Easy to use, no need to download or connect other devices, you can quickly and easily read the vehicle error. Shows code and code meaning directly One-button I/M readiness button to quickly check the status of emissions and exhaust system drive cycle, real-time operational data for view vehicle status at a glance Provides full OBDII functions including reading/clearing DTCs (Diagnostic Trouble Codes), reading vehicle information; displays freeze frame data Supports multiple languages including English, German, Italian, Spanish, French and Dutch. Reason for the engine light on During the check engine, when the check engine light comes on, you can read the error code. Then you can figure out the possible reasons and solve the simple problem of eliminating the indicator light yourself, which can save you money. Portable design, to main The error code reader is easy to handle. And it has a non-slip surface for easy handling. The small size allows you to easily store your tools. There are no other additional devices, no apps need to be downloaded. which are comparable to the same type of wireless products. Show Stopped Data If your vehicle breaks down during the test, the drive will error automatically generates freeze frame data. You can easily narrow down the cause of the problem by fixing issues such as engine speed, air flow, fuel pressure, etc.