Engine start timer for car with blue LED digital display1、Main Function: Helps to protect your turbo by cooling down after driving. Greatly improving the combustion efficiency of the engine, save a certain amount of fuel consumption. 2、Premium Material: The turbo timer is made of ABS plastic, ensuring excellent compact size and light weight, wear resistance, not easy to age and durable. 3、Special Design: Allows a clean and stylish installation virtually anywhere inside the car. The unique multi angle joystick button allows easy navigation through the many feature menus. 4、Features: Automatic countdown function to ensure the most optimal countdown configuration of the widest range of vehicles that the user can choose from 144 different configurations. 5、Multifunctional: First time to utilize O2 sensor voltage to calculate the necessary amount of after idling time automatically. The voltage, the oxygen content O2 and the air fuel ratio A/F can be displayed.