A key control: The head-up display is equipped with a single function button that can control multiple functions of one button and freely toggle, making it easy and convenient for you to use.
Plug and Play : The digital display speedometer is connected to the USB data cable, and the USB power consumption is zero. Automatic synchronous starting according to engine ignition .
GPS Compass :Precise GPS compass GPS compass, precise positioning, real-time data synchronous display, satellite data collection, not affected by the weather.
Speed and fatigue warning :A.Speeding alarm: Alerts drivers not to exceed the speed limit to improve driving safety. B.Fatigue driving reminder: The 4-hour continuous driving break reminder can prevent car accidents caused by driver fatigue.
Automatic light sensor :Adjust the brightness to match the sunlight. Visible backlight during the day, soft anti-reflective at night.
Veidou's GPS :The GPS+Beidou dual-mode chip is compatible with all vehicles, so you don't need to worry about compatibility. The vehicle refreshes 10 Hz at a rate of 10 frames per second, with fast up
【G4S GPS Speed Meter Troubleshooting】
1. No display on the screen, no power
Check whether USB line is damaged, replace USB line test, and prohibit using voltage higher than 5V
2.No speed
The satellite icon flashes indicating the star search state. Please move the car to the open road and wait until the satellite icon stops flashing
3.The speed is not allowed
Check unit correct, km KM / mile MPH, (speed unit switch reference settings)
When the car leaves the factory, the manufacturer increases the speed displayed on the dashboard by 5-7%, and the international standard is subject to satellite data
Fine-tune the vehicle speed, if the meter displays 100 Km/h, the machine displays 105 Km/h, and adjust the parameter value to 102
4. Driving direction is wrong
The satellite can't tell your direction when there have no speed, and the speed exceeds 5KM / H
5. The speed is still displayed after the car is stopped
Underground parking lot, tunnel, overpass, with shielding will make the signal unstable satellite drift, please drive the car to the open road
6.Turn off the buzzer
The wheel dials left for 2 seconds to turn off the buzzer and dial left again to open the buzzer