1. The evaporative emission control (EVAP) system captures gasoline fumes and other emissions produced when fuel evaporates within the gas tank or fuel system. The EVAP system then returns these vapors to the combustion process to keep harmful chemicals from reaching the air when the vehicle is not running. 2. Mini size fits comfortably in the palm of your hand, so that you can carry it around no matter in garage or on a trip. 3. Easy to use, play and plug. 4. Fast scan and clear engine errors, turn off check engine light, find out what is wrong with your car and perhaps fix it, save your money and time. 5. Specification: voltage: 9-12V working temperature: 0~50 degree Celsius
