1.This is a vehicle diagnostic tool interface scanner, which is is used to read trouble codes, clear trouble codes and detect fuel pressure and so on.2.OBDII Software for ELM327 is a free program that allows you to use your PC and a hardware interface to get the information from your car's computer.3.The program is very user-friendly, and easy to learn. It is also very easy to install: simply extract the files into a folder on your computer's hard drive, and you're ready to go.4. To uninstall the program, simply delete the entire contents of the folder where the program resides.5.The software supports four platforms - For Windows/Android/IOS Notice: This device can't work with IOS system. Mini wifi and Bluetooth ELM327 is the newly developed wireless scan tool. It supports all OBD-II protocols: • Works with all OBD-II compliant vehicles• Software included for Palm, PDA• Software included for Windows PC• Software included for Windows Smartphone• Supports ISO 9141, KWP2000• Supports SAE J1850• Supports CAN bus  Support OBD-II protocols as follows: * ISO15765-4 (CAN) * ISO14230-4 (KWP2000) * ISO9141-2 * J1850 VPW * J1850 PWMSAE J1850 PWM (41.6 kbaud)SAE J1850 VPW (10.4 kbaud)ISO 9141-2 (5 baud init, 10.4 kbaud)ISO 14230-4 KWP (5 baud init, 10.4 kbaud)ISO 14230-4 KWP (fast init, 10.4 kbaud)ISO 15765-4 CAN (11 bit ID, 500 kbaud)ISO 15765-4 CAN (29 bit ID, 500 kbaud)ISO 15765-4 CAN (11 bit ID, 250 kbaud)ISO 15765-4 CAN (29 bit ID, 250 kbaud)Device type: Car bluetooth read interface scannerInterface type: Auto ELM327 V1.5 interface    Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database).Clear trouble codes and turn off the MIL ("Check Engine" light)Display current sensor data, including:Engine RPMCalculated Load ValueCoolant TemperatureFuel System StatusVehicle SpeedShort Term Fuel TrimLong Term Fuel TrimIntake Manifold PressureTiming AdvanceIntake Air TemperatureAir Flow RateAbsolute Throttle PositionOxygen sensor voltages/associated short term fuel trimsFuel System statusFuel PressureMany others Package Including: 1pc x ELM 327 OBD HH Mini Bluetooth V2.1