1. Introduction
The RYSJM G12 Digital Car HUD GPS Speedometer is a versatile head-up display designed to provide essential driving information directly in your line of sight. Featuring a large, clear LCD screen with a 16:9 golden ratio, it offers a natural and unobstructed view of data such as speed, time, altitude, driving direction, and more. This plug-and-play device is compatible with all car models, drawing power via a standard USB 5V connection, ensuring zero power consumption when the vehicle is turned off. It incorporates a high-performance GPS+Beidou dual-mode chip for accurate and rapid data refresh, along with adaptive light sensing for optimal visibility day and night.
2. Safety Information
- Ensure the device is securely mounted and does not obstruct your view of the road or interfere with vehicle controls.
- Do not attempt to adjust settings or interact with the device while driving. Pull over to a safe location if adjustments are necessary.
- Keep the device away from extreme temperatures, direct sunlight for prolonged periods, and moisture.
- Use only the provided USB cable for power. Using incompatible cables may damage the device or your vehicle's electrical system.
- Avoid placing the device where it could become a projectile in the event of a sudden stop or accident.
3. Package Contents
Please check the package for the following items:
- G12-Host (Head-Up Display Unit)
- Micro USB Cable
- Non-slip Mat
- Rotary Suction Cup Holder
- User Manual
4. Product Overview
The G12 HUD features a large LCD screen designed for optimal readability and a multi-function display. It utilizes a GPS+Beidou dual-mode chip for high-accuracy data. The device is designed with adaptive light sensing to adjust brightness automatically, ensuring clear visibility in various lighting conditions without being dazzling at night.
Key Features:
- Multi-function Display: Shows speed, clock, date, driving time, driving distance, driving direction, altitude, accelerate time, longitude, and latitude.
- Two Alarm Functions: Includes a multi-stage speeding alarm and an 8-hour fatigue driving reminder.
- Adaptive Light Sensing: Automatically adjusts display brightness for optimal visibility in any environment.
- GPS+Beidou Dual-Mode Chip: Ensures high refresh rate (10Hz) and accurate, real-time data without delay.
- Plug and Play: Easy installation via USB, compatible with all vehicle types (new energy, hybrid, fuel, bus, truck).
- Zero Power Consumption: Automatically turns off with the car, preventing battery drain.
- Multiple Display Interfaces: Freely switch between various display modes to suit your preference.
5. Setup and Installation
The G12 HUD is designed for non-destructive, plug-and-play installation.
- Choose Installation Location: The device can be placed on the dashboard for traditional center console placement or mounted on the A-pillar using the rotary suction cup holder for suspension. Ensure the chosen location does not obstruct your view or interfere with airbags.
- Secure the Device: Use the provided non-slip mat to place the HUD securely on your dashboard. If using the rotary suction cup holder, attach it to the device and then to your desired location (e.g., A-pillar or windshield) ensuring it is stable. The holder allows 360° rotation for optimal viewing angle.
- Connect Power: Connect the Micro USB cable to the G12-Host. Plug the other end of the USB cable into your vehicle's USB interface or a cigarette lighter vehicle charging interface (USB adapter not included, typically uses a standard 5V USB port).
- Power On: The device will automatically power on when the car starts and power off when the car is turned off, ensuring no power consumption from your car battery when not in use.
6. Operating Instructions
The G12 HUD provides various driving data and features:
6.1 Display Modes
The device supports multiple display interfaces. You can switch between them using the control button (refer to Figure 7 for button location).
6.2 Displayed Information
- Speed: Displays current driving speed in MPH or KM/H.
- Clock: Automatic satellite time synchronization.
- Date: Displays the current date.
- Driving Time/Distance: Tracks the duration and distance of your trip.
- Driving Direction: Integrated compass for navigation.
- Altitude: Shows current altitude based on satellite data.
- Accelerate Time: Measures 0-100km/h acceleration time.
- Satellite Icon/Number: Indicates GPS signal strength and number of connected satellites.
- Longitude/Latitude: Provides geographical coordinates.
6.3 Alarm Functions
- Overspeed Alarm: Set a multi-stage speeding alarm to alert you when exceeding a predefined speed limit.
- Fatigue Driving Reminder: Provides a reminder after 8 hours of continuous driving to prevent fatigue.
6.4 Speed Unit Selection
The speed unit can be displayed in either MPH (miles per hour) or KM/H (kilometers per hour). Refer to the detailed manual included in the package for instructions on how to switch between these units.
6.5 Video Demonstration
7. Specifications
| Feature | Specification |
|---|---|
| Model | G12 |
| Brand Name | RYSJM |
| Rated Power | 5V |
| Display Channel | HD LCD Display |
| Display Mode | GPS |
| System | GPS for all cars |
| Color | Blue/Multicolor |
| Dimensions (L x W x H) | 127.7mm (5.03in) x 64.7mm (2.55in) x 22.9mm (0.9in) |
| Weight | 0.3 kg |
| Origin | Mainland China |
| High-concerned chemical | None |
| Output Frequency | 0 |
8. Troubleshooting
- Device does not power on: Ensure the USB cable is securely connected to both the HUD and a working USB power source in your vehicle. Check if the vehicle's ignition is on.
- No GPS signal: Ensure the device has a clear view of the sky. Obstructions like tunnels, tall buildings, or dense foliage can interfere with GPS reception. Move the vehicle to an open area.
- Inaccurate speed reading: GPS speedometers can sometimes have minor discrepancies compared to the vehicle's built-in speedometer. This is normal. Ensure the device has a stable GPS signal.
- Display is too dim/bright: The device features adaptive light sensing. If the brightness is not optimal, check for any obstructions on the light sensor.
- Display is flickering or showing incorrect data: Disconnect and reconnect the power cable. If the issue persists, try a different USB power source or cable.
9. User Tips
- For best visibility, position the HUD directly in your line of sight without blocking any critical view of the road.
- Experiment with different display modes to find the one that best suits your driving needs and preferences.
- Utilize the overspeed alarm feature to help maintain safe driving speeds, especially in unfamiliar areas.
- The fatigue driving reminder is a useful tool for long journeys; pay attention to its alerts and take breaks as needed.
10. Maintenance
- Clean the display screen with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Keep the device free from dust and debris.
- Ensure the USB port is clean and free of obstructions to maintain a reliable power connection.
- Store the device in a cool, dry place when not in use for extended periods.
11. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for any warranty claims.
