Introduction
The SDAO H400S Head-Up Display (HUD) is a universal driving computer designed to project essential vehicle information directly onto your windshield. This innovative C-HUD system utilizes an independent mirror optical design to provide a clear, ghost-free display without the need for reflective film. It enhances driving safety by allowing you to monitor key data such as speed, engine RPM, and various alarms without diverting your eyes from the road. This manual provides detailed instructions for setting up, operating, and maintaining your H400S HUD.
Package Contents
Please check the package to ensure all items are present:
- H400S Host Unit
- Connecting Cable (OBD)
- Wire Pry Bar
- Non-slip Mat
- Instruction Manual (this document)
- Qualification Certificate
Specifications
| Feature | Description |
|---|---|
| Model | H400S |
| Brand | SDAO |
| Origin | Mainland China |
| Display Type | C-HUD (Independent Mirror Optical Design) |
| Display Features | Speed, Time, RPM, Coolant Temperature, Voltage, Fuel Consumption, Repair Status, Alarm |
| Alarm Functions | Overspeed, Water Temperature, Low Voltage, Break Reminder, Engine Failure Warning |
| Display Colors | Blue, White (Switchable via 'M' button) |
| Brightness | Adaptive Photosensitivity |
| Dimensions (Folded) | 135mm (Length) x 77mm (Width) x 30mm (Height) |
| Dimensions (Mirror Open) | 135mm (Length) x 77mm (Width) x 54mm (Height) |
| Package Dimensions | 20cm (Length) x 14cm (Width) x 8cm (Height) |
| Package Weight | 0.308 kg |
Setup
- Placement: Choose a suitable flat surface on your dashboard, typically near the windshield, where the HUD will not obstruct your view of the road. Use the provided non-slip mat to secure the unit.
- Connection: Locate your vehicle's OBD-II port. This is usually found under the dashboard on the driver's side. Connect the provided OBD connecting cable to the HUD's OBD Power supply port and then to your vehicle's OBD-II port.
- Power On: Once connected, the HUD should power on automatically when the vehicle's ignition is turned on.
- Positioning: Adjust the angle of the HUD unit and its integrated hood to ensure the projected display is clear and visible on your windshield without glare. The integrated hood is designed to cover the light of the display, preventing dazzling during night driving.
- No Film Required: The H400S features an independent mirror optical design that provides a clear, ghost-free display directly on the windshield, eliminating the need for any reflective film.
Operating Instructions
Automatic Operation
The H400S HUD is designed for ease of use. It will automatically power on and off with your vehicle's ignition. The display brightness is controlled by an adaptive photosensitivity feature, which adjusts naturally to ambient light conditions, ensuring optimal visibility both day and night.
Display Information
The HUD can display various critical driving parameters:
- Speed: Current driving speed.
- Time: Current time.
- RPM: Engine Revolutions Per Minute.
- Coolant Temperature: Engine coolant temperature.
- Voltage: Vehicle battery voltage.
- Fuel: Fuel consumption data.
- Repair: Indicates potential repair needs or diagnostic information.
- Alarm: Activates for various warning conditions.
Changing Display Color
The H400S offers two display color options: Blue and White. To switch between these colors, press the 'M' button located on the unit.
Video Demonstration
Features
Advanced C-HUD Technology
The H400S utilizes a second-generation C-HUD system with an independent mirror optical design. This technology projects information directly onto the windshield, creating a stereoscopic image that appears suspended in the air. This design ensures a clear, sharp, and ghost-free display, unlike traditional reflective HUDs that often require film and can suffer from double vision or light pollution issues.
Safety Alarm Functions
The H400S is equipped with five crucial alarm functions to enhance driving safety:
- Overspeed Alarm: Alerts you when your vehicle exceeds a preset speed limit.
- Water Temperature Alarm: Warns of high engine coolant temperatures, indicating potential overheating.
- Low Voltage Alarm: Notifies you if the vehicle's battery voltage drops below a safe level.
- Break Reminder: Suggests taking a break during long drives to prevent fatigue.
- Engine Failure Warning: Indicates a detected issue with the engine, prompting further inspection.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the HUD unit. For the display panel, use a microfiber cloth and a gentle, non-abrasive cleaner suitable for electronics. Do not spray cleaner directly onto the unit.
- Avoid Obstructions: Ensure no objects are placed on top of the HUD unit that could block the projection or airflow.
- Cable Care: Periodically check the OBD connecting cable for any signs of wear or damage. Replace if necessary.
- Temperature: Avoid exposing the unit to extreme temperatures for prolonged periods, as this may affect its performance and lifespan.
Troubleshooting
- No Display/Power:
- Ensure the OBD cable is securely connected to both the HUD unit and the vehicle's OBD-II port.
- Verify the vehicle's ignition is on.
- Check the vehicle's OBD-II port for power (consult your vehicle's manual if unsure).
- Display Not Clear/Ghosting:
- Adjust the position and angle of the HUD unit.
- Ensure the windshield area where the display is projected is clean.
- The H400S is designed to be ghost-free without film. If ghosting occurs, ensure the unit is correctly positioned and the windshield is clean.
- Incorrect Speed Reading:
- The HUD typically calibrates automatically. If discrepancies persist, consult the full instruction manual for potential calibration settings (if available).
- Alarms Not Functioning:
- Ensure the HUD is receiving data from the OBD-II port.
- Check the full instruction manual for specific alarm settings and thresholds.
User Tips
- Optimal Placement: Experiment with different dashboard positions to find where the projection is most comfortable and least distracting for your driving posture.
- Cable Management: Use the wire pry bar to neatly tuck the OBD cable along the dashboard edges to avoid clutter and ensure it doesn't interfere with driving controls.
- Brightness Adjustment: While the HUD has adaptive photosensitivity, if you find the display too bright or dim in specific conditions, check the full manual for any manual brightness adjustment options.
- Alarm Customization: Familiarize yourself with how to customize alarm thresholds (e.g., overspeed limit) to suit your driving habits and local regulations.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided by your retailer or the manufacturer's official website. Keep your purchase receipt as proof of purchase.
