HUD short for Head Up Display. It displays driving datas on the front windshield such as speed, RPM, fuel consumption, 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.
Environment temperature: -40c- + 80c atmospheric pressure 86-106KPa
Relative Humidity: 10% -95% environmental noise <= 60dB (A)
Alarm sound level: 》= 30dB (A)
Working voltage: 9V ~ 16Vdc (12Vdc / 400mA)