Introduction
The SinoTrack H2 HUD GPS Speedometer is a universal heads-up display designed to provide essential driving information directly in your line of sight. It features a 2.7-inch screen displaying speed, compass direction, and includes speeding warnings. Utilizing advanced GPS satellite technology, it offers stable and accurate speed measurement for a wide range of vehicles.

Image: SinoTrack H2 HUD GPS Speedometer overview with key features.
What's in the Box
- SinoTrack H2 GPS Speedometer (1 unit)
- USB Cable (1 unit)
- User Manual (1 unit)
- Non-slip mat (1 unit)

Image: Contents of the SinoTrack H2 HUD GPS Speedometer package.
Features
- 2.7-inch Display: Clear and large digital display for easy readability.
- GPS Intelligent Chip: Provides reliable and accurate real-time speed data.
- Universal Compatibility: Works with all vehicle types including cars, SUVs, ATVs, trucks, scooters, golf carts, buses, boats, trains, bicycles, and motorcycles.
- Plug and Play USB Connection: Simple setup by connecting to a vehicle's USB port or cigarette lighter adapter.
- Speed Alert Function: Customizable speed warnings to promote safe driving.
- Compass Display: Shows current driving direction (N, S, E, W).
- Automatic/Manual Brightness Adjustment: Adapts to ambient light conditions for optimal visibility.
- Customizable Display: One-button setup to select display data and adjust settings.

Image: Intelligent GPS chip for real-time speed updates.

Image: Universal compatibility with various vehicle types.

Image: Overspeed alarm function for improved driving safety.

Image: Clear display in all weather conditions with auto-sensing brightness.
Setup
- Placement: Place the SinoTrack H2 HUD on a flat, stable surface on your dashboard, ensuring it does not obstruct your view. Use the provided non-slip mat for secure positioning.
- Power Connection:
- Connect the supplied USB cable to the HUD.
- Plug the other end of the USB cable into your vehicle's USB port.
- If a USB port is unavailable, use a car cigarette lighter adapter (not included) for power.
- Initial GPS Signal Acquisition: Upon first use, the device may take 3-5 minutes to acquire a GPS signal. Ensure the vehicle is outdoors and in an area with clear sky access for optimal signal reception. Avoid indoor use or locations with weak GPS signals.

Image: Plug and Play installation steps.
Video: Official demonstration of unboxing, installation, and basic operation of the SinoTrack H2 HUD GPS Speedometer.
Operating Instructions
- Power On/Off: The device powers on automatically when connected to power and powers off when disconnected.
- Speed Display: Once a GPS signal is acquired, your current speed will be displayed prominently.
- Compass Display: The compass will indicate your current driving direction (N, S, E, W).
- Changing Speed Unit (MPH/KM/H):
- Locate the "Set the key" button on the side of the device.
- Press and hold the button to enter the settings menu.
- Navigate through options using short presses.
- Select the speed unit (MPH or KM/H) and confirm.
- Setting Speed Alert:
- Access the settings menu.
- Locate the speed alert option.
- Adjust the desired speed limit using the button. The device will flash or beep (depending on settings) when this limit is exceeded.
- Brightness Adjustment: The display features automatic brightness sensing. You can also manually adjust brightness through the settings menu if preferred.

Image: Product detail showing dimensions and control button.

Image: One-Key Operation diagram for settings adjustment.
Maintenance
To ensure the longevity and optimal performance of your SinoTrack H2 HUD GPS Speedometer, follow these maintenance guidelines:
- Keep the device clean using a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Avoid exposing the device to extreme temperatures (very hot or very cold) or direct sunlight for prolonged periods.
- Ensure the USB cable is not pinched, bent sharply, or damaged.
- Do not attempt to disassemble the device, as this may cause damage and void any applicable warranty.
Troubleshooting
- No Display/No Power:
- Check if the USB cable is securely connected to both the HUD and the vehicle's power source.
- Ensure the vehicle's USB port or cigarette lighter adapter is functional.
- No GPS Signal/Inaccurate Speed:
- Ensure the vehicle is outdoors and has a clear view of the sky.
- The first signal acquisition can take 3-5 minutes. Be patient.
- Avoid using the device indoors or in areas with known weak GPS signals (e.g., tunnels, underground parking).
- If the issue persists, try restarting the device by unplugging and replugging the USB cable.
- Display Too Bright/Dim:
- The device has an automatic brightness sensor. Ensure the sensor holes on the back of the unit are not blocked.
- Adjust brightness manually through the settings menu if auto-sensing is not suitable for your environment.
Specifications
| Feature | Detail |
|---|---|
| Model Number | ST-HUD-H2 |
| Brand | SinoTrack |
| Product Dimensions (L x W x H) | 3.15 x 1.22 x 2.12 inches (80 x 31 x 54 mm) |
| Item Weight | 1.44 ounces (40.8 grams) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Display Size | 2.7 inches |
| Connectivity | USB (Plug and Play) |
| Features | Speed, Compass, Over Speed Alarm, Auto/Manual Brightness |
Support
SinoTrack is committed to providing quality products and attentive after-sales service. If you have any questions or require assistance with your SinoTrack H2 HUD GPS Speedometer, please do not hesitate to contact customer support. Contact information can typically be found on the product packaging or the official SinoTrack website.
