Description This ELM327 OBD2 car auto diagnostic scanner can read diagnostic trouble codes and display their meaning. There are over 3000 generic code definitions in the database. Supports ISO 9141-2， KWP2000， SAE J1850 VPW / PWM， CAN bus. The output bus is: RS232 Can transmit the scanning data to your computer， cellphone， PDA through bluetooth. (Note: not compatible with iphone， ipad and other apple devices; PDA must be windows system) Come with driver software (see it in the CD disk， only support windows system). With LED lights show: OBD TX/RX， RS232 TX/RX. Working voltage: 12V Working current: 45mAhScanning functions (can display them on bluetooth player): Engine RPM Calculated Load Value Coolant Temperature Fuel System Status Vehicle Speed Short Term Fuel Trim Long Term Fuel Trim Intake Manifold Pressure Timing Advance Intake Air Temperature Air Flow Rate Absolute Throttle Position Oxygen sensor voltages/associated short term fuel trims Fuel System status Fuel Pressure OthersPackage include: 1X bluetooth car Diagnostic Scanner 1X CD disk (include driver software)