With iAutomobil obd reader, you can read diagnostic trouble codes, reset and check engine light, and more!REMINDER: Please install TORQUE Lite from Google Play (not applicable to IOS)Save money on service charges with this all new professional-grade automotive scan tool obd elm 327 bluetooth revolution! • Monitor O2 sensor readings, EOT, Revs, Throttle, Boost, Speed Fuel Trim, and more• Check emissions• Reset your check engine light. • Diagnose and fix engine issues yourself. • Connect to a software package that is fully compatible to receive other useful features such as engine running parameters monitoring, DTC reading and clearing, MPG meter, and more. How compatible is this bluetooth auto scan tool? • Capable of diagnosing a vast range of generic and brand-specific codes.• OBD scanner connects with any compatible free or paid Android or Windows app (Torque Lite OBD Car Doctor, Torque Pro(Fee applied) and DashCommand (Fee applied). User-friendly and installs in seconds. • Uses AT commands to communicate with a host device (PC, notebook, tablet, Android, and more). BUT WAIT, here's MORE to receive: • New technology that lasts longer than other brands. • A stable connection. • Better data transfer and smooth functionality of all compatible vehicles.• Low power sleep mode. • Economical vehicle maintenance with constant use. • This obd ii Bluetooth measures in inches: 2.7 x 1.25 x 0.9. • 1-year money back guarantee Request for return or refund is case-to-case basis and must be free from doubt of negligence from the buyer side within 30 days upon purchaseWhat IF I have questions or concerns? Our Customer Care Team are available and ready to assist you. Please leave a voicemail with your Order # or send us an email and we will respond within 12hrs.