NOT COMPATIBLE WITH IOS (iPhone or iPad)! Works with Android devices and Bluetooth-enabled Windows PC only. Very useful gadget for car owners to diagnose check engine light and monitor car sensors. Save time and money by finding out why the check engine light is on and fixing simple car problems by yourself! Read engine diagnostic trouble codes and get DTC definitions, reset check engine light, and check if your vehicle is ready for emission inspection. Access a whole new world of information about your vehicle directly on your phone, tablet or PC. View car performance, sensor data (Engine coolant & oil temperature, O2 Readings, Mass air flow, Fuel Trim, etc.), monitor fuel economy, create your own dashboard, log your trips, and more to discover. A third-party OBD App is required; compatible with OBD Fusion, Car Scanner ELM OBD2 and Inforcar. Turn your phone or tablet into a sophisticated diagnostic scan tool. Compatible with cars and light trucks made since year 2001 (gas) or 2004 (diesel) in UK and EU. Backed by 12-month hassle-free replacement warranty and friendly customer support.