Features: KW309 Code Reader, plug and play, fast scan and clear trouble codes, very easy to use, even a beginner can use this unit to read the error code. Full OBDII diagnostic scanner Function: read &erase engine fault code; view freeze frame data; viewing vehicle information etc. Convenient for you to know the real time status of your vehicle without going to car repair Shop. KW309 auto code reader can quickly read and erase all types of vehicle stored emission related trouble codes, pending codes, and show code definitions. Perfect fixed car diagnostic tool for car DIY mechanic and car owners. Portable Anti-Slip design and long diagnostic cable arrow you to perform a professional diagnostics in or out of your vehicle. Large LCD display and four logical buttons, easily operate and indicates test results directly. No need any battery, will get power from vehicle when connected. Even a beginner can easily use this unit. You may save the diagnostic data in KW309 OBD2 scanner, including trouble codes, freeze frame and live data. provides life-time free software update to fix the latest bugs or add new parameters. Specifications: Color: Red,Black(optional) Material:Plastic Operating Temperature: 0 to 60 degrees C (32 to 140 F degrees ) Storage Temperature: -20 to 70 degrees C (-4 to 158 F degrees ) Size:20*15*4cm Weight:170g Packing List: 1*Car Tester 1*User Manual