Geyiren H4 Auto GPS HUD - Universal Digital Speedometer with MPH/Km/h Projection
The Geyiren H4 HUD is an advanced GPS-based head-up display (HUD) designed for enhanced driving safety and convenience. Featuring large, clear digital projections and automatic brightness adjustment, it is suitable for all types of vehicles, including cars, buses, trucks, and motorcycles. With its user-friendly installation and reliable performance, this HUD ensures seamless integration into your driving experience.
Geyiren H4 HUD Key Features
1. Universal Compatibility
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Works with all vehicles using GPS signals, including cars, motorcycles, buses, and trucks.
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No reliance on OBD2 interfaces, making it perfect for older or specialized vehicles.
2. Real-Time Display Functions
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Digital Speedometer: Displays vehicle speed with large, easy-to-read digits.
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Compass Function: Indicates precise driving direction (e.g., N, NE, S, SW).
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Speed Unit Options: Freely switch between KM/H and MPH for global usability.
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Ambient Light Sensor: Automatically adjusts screen brightness for optimal visibility, day or night.
3. Enhanced Safety and Usability
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Projection on Windshield: Key data is displayed directly on the windshield, keeping your eyes on the road.
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Easy Installation: Plug-and-play design requires only a USB connection; no complex wiring or setup needed.
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Speed-Responsive Ambient Light: Visual cues change dynamically with your speed.
Geyiren H4 HUD Specifications
| Parameter | Details |
|---|---|
| Brand Name | GEYIREN |
| Model Name | H4 GPS HUD |
| Power Supply | 5V |
| Dimensions | 99.5 × 65 × 20 mm |
| Display Type | LED reflective projection |
| Compatibility | Suitable for all cars, buses, trucks, and motorcycles |
| Functions | Speed, Compass, Ambient Light |
| Display Units | KM/H, MPH |
| Operating Temperature | -20°C to 85°C |
| Voltage Range | 5-25V |
| Speed Range | 0-400 KM/H |
| Compass Directions | N, NE, E, SE, S, SW, W, NW |
| Brightness Adjustment | Automatic |
| GPS Refresh Rate | 10 Hz |
| Unit Switching | KM/H to MPH |
Geyiren H4 HUD Functional Details
Display Components
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Satellite Signal Icon: Flashes while searching for GPS signals and stabilizes when locked.
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Compass: Displays precise directions (N, S, E, W, and intermediate directions).
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Speed Display: Large, clear digits for real-time vehicle speed.
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Ambient Light: Adjusts dynamically based on driving speed.
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Speed Units: KM/H displayed by default, with easy switching to MPH.
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Automatic Brightness Adjustment: Adapts to environmental light conditions for clear visibility.
Driving Directions
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Compass accurately shows directional data such as NE (Northeast), SW (Southwest), and more.
Wide Application
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Compatible with various vehicles, from trams and hybrids to fuel trucks and motorcycles.
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GPS signal ensures accurate performance even without an OBD2 port.
Installation Instructions
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Connect the included USB cable to the HUD and your vehicle’s USB power port.
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Position the device on the dashboard using the provided non-slip mat.
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Wait for the satellite icon to stabilize (approximately 1 minute) to ensure GPS connection.
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Adjust settings for preferred speed units and brightness as needed.
Accessories Included
| Accessory | Description |
| H4 HUD Main Unit | Displays all essential information |
| 2.5M USB Cable | Connects HUD to vehicle power |
| Reflective Film | Ensures clear projection on glass |
| 3M Glue Pad | Secures device to the dashboard |
| User Manual | Step-by-step installation guide |
Important Notes
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Test the device outdoors or near an open area for proper GPS signal reception.
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Ensure the satellite icon stops flashing before use to confirm stable signal lock.
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For the first use, allow the device to locate satellites, which may take up to 1 minute.
Why Choose Geyiren H4 HUD?
With its high-definition digital display, universal compatibility, and safety-focused design, the Geyiren H4 HUD is the ultimate driving companion. Whether you drive a car, motorcycle, or truck, this HUD ensures you stay informed without distractions. Upgrade your driving experience today with the Geyiren H4 HUD!
Functional description:
1. Satellite icon - flashing indicates searching for signals, long light indicates stable signals
2. Buzzer icon - long light indicates turning on the sound
3. Compass display area: displays the current driving direction.
E (East), ES (Southeast)
S (South), WS (Southwest)
W (West), WN (Northwest)
N (North), EN (Northeast)
4. Ambient light - changes with speed
5. Vehicle speed display area
6. Speed unit: KM/H - kilometers, MPH - miles
Geyiren H4 HUD Details
H4 New Speedometer, a new GPS Head-Up Display, sun-proof and visible, compatible with all models. Displays speed in MPH and KM/H, also shows compass direction and allows for customizable speed unit settings.
SENSOR FITS ALL CARS FOR SAFE DRIVING. INTRODUCTION TO WA2V HAM HIMM. This device senses external light intensity and automatically adjusts screen brightness to adapt to the environment. It also displays the current direction of the car, including E (East), W (West), S (South), N (North), SE (Southeast), NW (Northwest), SW (Southwest), and NE (Northeast). Additionally, it features a BUZZER that sounds on and off to alert the driver when speeding. The GPS signal light is stable when a connection is established and flickers when searching for a signal. Finally, the ambiance varies with speed.
Six units display speed in kilometers per hour and miles per hour. The mph unit shows the number shows the speed of the car. Keep safety driving, keep your eyes ahead, no need to look down at the dashboard while driving.
The Geyiren H4 HUD product is suitable for all car models, with no limitations. It supports various vehicles such as trucks, buses, motorcycles, and more. The device can be used in satellite places and provides strong signal GPS capabilities, including Beidou signals. The real-time synchronization is accurate without manual adjustment. It features a 10 Hz high refresh rate, taking 10 photos per second for fast and seamless display. Additionally, it supports up to 32 satellites and offers a dual-mode chip for stronger signals.
Automatic and Adjustable Brightness: The brightness adjusts automatically based on the current environment light and can be adjusted manually as well.
Julvie MHP Overspeed Alarm Function. The device automatically beeps when the car exceeds a preset maximum speed of 120 MPH.
USB Power Consumption: 0. The car USB port can be powered by a car USB (5-24V) or cigarette lighter, which consumes minimal power. If the power is short, the car will shut off.
Product Parameter: 20 mm (0.79 in), 99. Dimensions: 99.5 x 65 x 20 mm, Voltage: 5-25V, Temperature: -20°C to +85°C. Display Function: Speed/compass/speed alarm. Includes: Host; USB cable, manual, pad reflective film.
Product List W3 8 M, Geyiren H4 HUD product with reflective film, Head-up display (HUD) garage door opener system including Bluetooth module and remote control, 2.5M USB cable, 3M glue, instruction manual.
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