The HH OBD ELM327 Bluetooth OBDII scanner is an engine performance and diagnostics tool for both automotive enthusiasts and professionals. Paired with your Android smartphone or tablet， the ELM327 Bluetooth allows you to easily scan and clear engine codes， view and save real-time engine and performance data and much more.Features:Read and erase diagnostic trouble codes (DTCs) and turn off the check engine lightConnect to an Android Smartphone using one of the many free compatible apps or a Bluetooth® enabled computer using the supplied softwareView real-time vehicle data， graphs and performance parameters while you're drivingFind and fix problems before they happenPays for itself with one useConnects wireless via Bluetooth up to 3 meters (no annoying cables)Compatible with most OBDII compliant vehicles (see compatible protocols below) Bluetooth Pairing Password: 1234 Compatible Protocols: ISO 9141-2 (5 baud init， 10.4 kbaud)ISO 14230-4 KWP (5 baud init， 10.4 kbaud) - KWP2000ISO 14230-4 KWP (fast init， 10.4 kbaud) - KWP2000ISO 15765-4 CAN (11 bit ID， 500 kbaud) - CAN BUSISO 15765-4 CAN (29 bit ID， 500 kbaud) - CAN BUSISO 15765-4 CAN (11 bit ID， 250 kbaud) - CAN BUSISO 15765-4 CAN (29 bit ID， 250 kbaud) - CAN BUSVehicle Coverage:Works on OBDII Vehicles (1996+ in USA) and EOBD vehicles (Petrol cars from 2001+ and cars from 2003/2004 in Europe) that use the compatible communication protocols listed above.For your vehicle to be OBDII compliant it must have a 16-pin DLC (Data Link Connector) under the dash and the Vehicle Emission Control Information Label must state that the vehicle is OBDII compliant. NOTE: NOT compatible with the following Protocols:SAE J1850 VPW - Used on older GM and Chrysler/Dodge vehicles before 2008SAE J1850 PWM - Used on older Ford vehicles before 2008SAE J1939 - Used on heavy duty commercial vehicles Functions Available:With the appropriate applications， perform the following operations:Read diagnostic trouble codes， both generic and manufacturer-specific， and display code descriptions with over 3000 universal code definitions in the databaseClear diagnostic trouble codes and turn off check engine lightsDisplay and record real-time sensor data， including: Engine RPM Coolant TemperatureCalculated Load ValueFuel System StatusMPH 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 Pressure+ MorePackage Includes:1 x Car Diagnostic tool