Main Features* 10 functions can be displayed .*The opening mode and ending mode can be selected from two variations .* A warning value ( arbitrary ) can be set and the warning buzzer can be selected from three variations or turn of* The buzzer can be selected in three loud levels*7 Colors backlights can be selected* Flat gla , high-definition scale and long , narow pointer provides accurate indication and high visibility .* Data obtained during ding ( peak value and wamning value ) can be stored u and the peak value can be reviewed and clearedProduct Specifications* Power-supply voltage : 10V to 15V DC ( 12V vehicles only )* Current consumption : + B line : MAX 120mA*IGN line : MAX 120mA*ILM line : MAX 2mAWarning*This product is designed for use on 12V vehices . Do not install this product on vehicles with 24V system .* Do not disaemble or modify this product . Such actions will not only void the warranty but also damage or destroy the produ* Do not perform installation of this product immediately after the engine has been switched off . The engine and exhaust systemare extremely hot at this time and can cause burns if touched .Note:1: This product is divided into multiple parts, including: display, controller, and various sensors, and they are all sold individually, but 1 car is equipped with 1 display and 1 controller, and the sensor is purchased according to demand. Therefore, when you purchase this product, please be clear about your needs.2: The monitor can display all the function parameters (a total of 10 kinds of function parameters), but it can only display two kinds of parameters at the same time, so if you want to view more than two parameters at the same time, please purchase more than one display.If you still do not understand, please contact customer service staff before placing an order, they will give you a detailed answer, thank you! ! !