Functions of the Mini OBD2 Scanner: 1: Read diagnostic trouble codes, both generic and manufacturer-specific, and view their meaning (over 3000 generic code definitions in the database). 2: Clear trouble codes and turn off MIL (check engine light) 4: motor RPM 5: calculated load value 6: Coolant temperature 7: Fuel system status 8: Vehicle speed 9: Short-term fuel trim 10: Long-term fuel trim 11: intake manifold pressure 12: Timing 13: intake air temperature 14: air flow 15: Absolute throttle position 16: Oxygen sensor voltages/associated short term fuel trims 17: Fuel system status 18: Fuel pressure 19: many others Mini OBD2 Scanner Specifications: Communication: wireless 2.0 Main chip: ST Support System: Android and Windows Operating voltage: 9v ~ 16v Working current: 35mA Standby current: 25mA Operating temperature: -40 - 85 Working humidity: less than 60% Size: 45mm*25mm*65mm Compatible systems: Software Support Platform: Windows XP, Windows 7/8, Android, Symbian. Compatible Software: Window: scanmaster-elm, scantool.com, PCMSCAN ELM, etc. Android: Torque, dashorder, OBD Car Doctor, Auto Doctor, Mini OBD, EOBD, etc. Sold by the store