M8 3.5 inch Universal Car OBD2 HUD

M8 3.5 inch Universal Car OBD2 HUD
1. Easy to operate.
2. Easy to install, play and plug.
3. Real-time display of vehicle speed, speed and car fault alarms.
4. HUD short for Head Up Display. It displays driving datas on the front windshield such as speed, RPM, water temperature, voltage etc on the car front window glass; avoiding drivers unsafety because of watching the instrument while driving. Drivers can read the driving information instantly, and can always keep the best state on the way with HUD
5. Specification:
Environment temperature: - 40 degree Celsius ~ +120 degree Celsius
Barometric press: 86-106KPa
Relative humidity: 10%-95%
Environment voice: