Product functions:

1. Multiple functions: Speed, water temperature, voltage, satellite numbers, driving distance.

2. Decorative lights: all LED in, you can freely push right to turn off. 

3. Light sensor: HUD can automatically adjust the brightness according to the environment.

4. Speed unit: KM/H=kilometer/hour, MPH=Mile/hour.

5. Unit icons: V=battery voltage, C=Celsius,F=Fahrenheit, OBD system, GPS system.

6. RPM icon: It is engine speed in OBD mode, and speed progress bar in GPS mode.  

Technical Specification:

Environment temperature: -40C— +80C 

Barometric press: 86-106KPa 

Relative humidity: 10%-95%  

Environment voice: <=60dB 

Work voltage: 11V~18Vdc(12Vdc/200mA)  

Standby current: <=20mA 

Display way: reflective 

Display channel: LED Display