Description: 【Material】: The car head up display is made of PVC material, is sturdy and long service time 【Multifunction】: Car head up display has vehicle speed, RPM, water temperature, voltage, fuel consumption, , driving time, engine load, speed up test, brake test, Engine fault code clearing 【Alarm Functions】: Head Up Display with speed alarm, voltage alarm, water temperature, RPM alarm 【Automatic On Off 】: This OBD digital speedometer Automatically turn on and off as the car starts and turns off, It is convenient to use 【Features】: The multifunction display digital colors can be adjusted, multiple functions can be combined and match, and the multi language setting system is simple to set Specification: Material: PVC Size Chart: 8.4 cm x 7.6 cm/3.31 inch x 2.99 inch Package Includes: 1x Head up Display 1x OBD Cable 1x Manual 1x Non slip Mat Note: Please allow slightly errors 1-2cm differences due to manual measurement.