[VOLTAGE AND CHARGING FUNCTIONS]Voltmeter function,And battery level indicator ,Crangking System Test ,Analyze the state of the cranking system, display the cranking voltage,and the cranking time,Graphs the waveform of the Cranking System,Charging System Test,Analyze the state of the charging system,display the ripple.unload and load voltage,Graphs the waveform of the ripple test etc. [PROFESSIONAL CHECKING CAR ENGINE TOOL]Displays definitions on unit screen,Views freeze frame data,Displays monitor and readiness status (emissions),Identifies pending codes,Read live PCM datastream,Displays live 02 sensor test data. [WIDE COMPATIBILITY]Works on all 1996 and later OBDII compliant US, European and Asian vehicles,Graphs data (1996 and newer) determines the cause of the Check Engine Light() Retrieves generic (PO, P2, P3,and U0) and manufacturer specific (P1, P3, and U1) codes Turns off Check Engine Light(), clears codes and resets monitors.Supports CAN (Controller Area Network) and all other current. [STORING DATA]Reads, stores & playbacks live sensor data, data,and freeze frame data.Performs modules present test,Retrieves vehicle information (VIN, CIN and CVN),0BD-Il protocols,Built-in OBD-II lookup library, easy-to-read backlit LCD screen. Color: Red & Black Material: ABS Package Contents: 1x OBD2 Scanner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.