1. Introduction
The RYSJM B3 OBD HUD and G3 GPS HUD are advanced digital head-up displays designed to project essential driving information directly into your line of sight, enhancing safety and convenience. These devices feature a high-definition LCD display with automatic light sensitivity adjustment, ensuring clear visibility day and night without obstructing your view. Their compact design allows for versatile placement within your vehicle.
The B3 model utilizes the On-Board Diagnostics (OBD) system to retrieve vehicle data, while the G3 model relies on GPS for universal compatibility across various vehicle types.
Video: RYSJM HUD product demonstration showing various display modes and in-car usage.
2. Model Overview
The RYSJM Head-Up Display is available in two distinct models: B3 OBD HUD and G3 GPS HUD. Each model offers specific functionalities and compatibility:
2.1 B3 OBD HUD
The B3 OBD HUD connects to your vehicle's OBD-II port to access real-time data. It is suitable for most gasoline vehicles with an OBD protocol, specifically those produced in the United States after 2004, and gasoline vehicles in other regions after 2008. Please verify your vehicle's compatibility before use.
Key Functions:
- Vehicle Speed (MPH/KMH)
- Tachometer (RPM)
- Water Temperature (°C/°F)
- Fuel Consumption
- Voltage
- Current Time
- Single Driving Distance
- Single Driving Time
Alarm Functions:
- Overspeed Alarm
- RPM Alarm
- Water Temperature Alarm
- Voltage Alarm
- Fatigue Driving Reminder
Image: B3 OBD HUD with its included accessories.
2.2 G3 GPS HUD
The G3 GPS HUD operates independently using GPS and Beidou satellite signals, making it universally compatible with all car models, including new energy vehicles, petrol-electric hybrid vehicles, fuel cars, and trucks. It connects via a USB cable.
Key Functions:
- Vehicle Speed (MPH/KMH)
- Clock (Satellite automatic time service)
- Compass (Driving direction)
- Single Driving Distance
- Driving Time
- Number of Satellites
- Altitude (Vehicle Satellite Altimeter)
- 100 Kilometers Acceleration Time
Alarm Functions:
- Overspeed Alarm
- Fatigue Driving Reminder
Image: G3 GPS HUD with its included accessories.
3. Specifications
| Feature | Specification |
|---|---|
| Brand Name | RYSJM |
| Display Type | HD LCD Display |
| Connectivity | Wired (B3: OBD, G3: USB) |
| Origin | Mainland China |
| Product Name | Head-up display gauge |
| B3 OBD HUD Compatibility | Most gasoline vehicles with OBD protocol (US after 2004, other regions after 2008) |
| G3 GPS HUD Compatibility | Suitable for all cars |
| Dimensions (Approx.) | Length: 18 cm, Width: 10 cm, Height: 7 cm |
| Weight (Approx.) | 0.21 kg |
Image: Detailed dimensions and design features of the B3 HUD.
4. Setup and Installation
Both models are designed for plug-and-play installation. Ensure your vehicle is turned off before beginning installation.
4.1 B3 OBD HUD Installation
- Locate the OBD-II Port: The OBD-II interface is typically found under the steering wheel. You can also check for an 'OBD2 CERTIFIED' sticker under the hood.
- Connect the OBD Cable: Plug the OBD cable connector into your vehicle's OBD-II port.
- Route the Cable: Carefully insert the OBD cable into the gap along the A-pillar seal to conceal it and prevent obstruction.
- Position the HUD: Place the B3 HUD on your dashboard in a position that does not obstruct your view of the road.
Image: Step-by-step installation guide for the B3 OBD HUD.
4.2 G3 GPS HUD Installation
- Connect the USB Cable: Plug the USB cable into your vehicle's cigarette lighter interface or another suitable USB power source.
- Route the Cable: Carefully insert the USB cable into the gap along the A-pillar seal to conceal it and prevent obstruction.
- Connect to HUD: Connect the other end of the USB cable to the Micro USB interface on the G3 HUD.
- Position the HUD: Place the G3 HUD on your dashboard in a position that does not obstruct your view of the road.
Image: Step-by-step installation guide for the G3 GPS HUD.
5. Operation
5.1 Automatic Power On/Off
Both HUD models automatically power on when your vehicle starts and power off when the vehicle stalls, ensuring convenient and energy-efficient operation.
Image: Illustration of the automatic power on/off function.
5.2 Display Functions
The HUD provides various display modes and information. Use the dial button on the device to switch between different display interfaces and adjust settings.
B3 OBD HUD Display:
Image: Diagram illustrating the B3 OBD HUD display functions.
G3 GPS HUD Display:
Image: Diagram illustrating the G3 GPS HUD display functions.
5.3 Multiple Display Interfaces
Both models offer multiple display interfaces that can be switched with a single key press, allowing you to customize the information shown. The display uses a numerical lubrication algorithm for consistent and smooth speed readings.
Image: Examples of multiple display interfaces available on the B3 HUD.
Image: Examples of multiple display interfaces available on the G3 HUD.
5.4 Adaptive Sensitivity
The HUD features adaptive sensitivity, automatically adjusting display brightness based on ambient light conditions. This ensures a clear display without glare during the day and appropriate dimming at night.
Image: Adaptive sensitivity for optimal visibility in varying light conditions.
5.5 Alarm Functions
The HUD includes various alarm functions to enhance driving safety:
- Overspeed Alarm: Alerts you when exceeding a set speed limit.
- RPM Alarm (B3 only): Notifies you if engine RPMs are too high.
- Water Temperature Alarm (B3 only): Warns of excessive engine water temperature.
- Voltage Alarm (B3 only): Alerts to low or high battery voltage.
- Fatigue Driving Reminder: Prompts you to take a break after a set period of continuous driving.
Image: Visual representation of the multiple alarm functions.
6. Maintenance
To ensure the longevity and optimal performance of your RYSJM HUD, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the display screen and device body with a soft, dry, or slightly damp cloth. Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the surface.
- Storage: When not in use for extended periods, store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Ensure the connection cable (OBD or USB) is not kinked, pinched, or subjected to excessive tension, which could damage the wiring.
7. Troubleshooting
If you encounter issues with your RYSJM HUD, please refer to the following common problems and solutions:
7.1 Device Not Powering On
- Check Connection: Ensure the OBD cable (for B3) or USB cable (for G3) is securely plugged into both the vehicle's port and the HUD device.
- Vehicle Power: Confirm that your vehicle's ignition is on. The HUD powers on automatically with the car.
- Cable Integrity: Inspect the cable for any visible damage.
7.2 Incorrect Readings or No Data Display (B3 OBD HUD)
- Vehicle Compatibility: The B3 OBD HUD is primarily compatible with gasoline vehicles produced in the US after 2004 and other regions after 2008. It may not work with all diesel, electric, or older gasoline vehicles. Verify your vehicle's model year and fuel type.
- OBD-II Protocol: Ensure your vehicle supports the standard OBD-II protocol. Some vehicles may use proprietary protocols (e.g., J1850) that are not fully supported.
- Loose Connection: Re-seat the OBD cable firmly into the OBD-II port.
7.3 Incorrect Speed or Time (G3 GPS HUD)
- GPS Signal: Ensure the device has a clear view of the sky to acquire GPS satellite signals. Obstructions like tunnels, tall buildings, or heavy tree cover can interfere with signal reception.
- Initial Lock: Allow a few minutes for the device to acquire a stable GPS lock after powering on, especially when used for the first time or after being moved a long distance.
7.4 Display Too Bright or Too Dim
- Automatic Adjustment: The device features automatic light sensitivity. Ensure the photosensitive element (usually a small sensor on the device) is not covered.
- Manual Adjustment: Refer to the included manual for instructions on manually adjusting brightness if needed.
8. User Tips
- Choose the Correct Model: Always double-check whether you need the B3 OBD HUD or G3 GPS HUD based on your vehicle's compatibility and desired features. The connection type (OBD line vs. USB line) is a key differentiator.
- Optimal Placement: Position the HUD on your dashboard where it is clearly visible but does not obstruct your view of the road or any critical vehicle controls. Its compact size is designed for flexible placement.
- Clear Visibility: Thanks to its high-definition LED and automatic light sensitivity, the display remains clear and readable in various lighting conditions, from bright daylight to nighttime driving.
- Utilize Multiple Displays: Experiment with the different display interfaces to find the combination of information that best suits your driving needs and preferences.
9. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller directly. It is recommended to reach out immediately if you experience any issues to ensure prompt assistance and resolution.
