KUOWEIHUD H4 Heads Up Display Car HUD Digital GPS Speedometer with Speed Alarm MPH & KM/H
KUOWEIHUD H4 Heads Up Display Car HUD Digital GPS Speedometer with Speed Alarm MPH & KM/H
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Real-Time Speed. Compass. Speed Alarm. Keep Your Eyes on the Road.
The KUOWEIHUD H4 HUD Heads-up Display reflects real-time speed and compass directly onto your car windshield. No more looking down, just drive. and a customizable speed alarm limit — Reduce speeding tickets.
- 4-Inch LED Screen with Large Font — A bright, oversized display makes your speed instantly readable at a glance.
- Dual-Mode GPS+BDS Chip (10 Hz) — Connect up to 32 satellites for fast, stable speed readings in cities, highways, and rural roads. Note: GPS signal may be weak in tunnels, underground parking, or during heavy rain. This is normal for all GPS-based devices.
- 🔔 Customizable Speed Alarm — Set your own speed limit. Get instant flash + beep alerts when you exceed it — Reduce speeding tickets, ideal for school zones, highways, and unfamiliar roads.
- Built-in Compass — Shows your current direction (N, NE, E, SE, S, SW, W, NW) at a glance.
- Auto & Manual Brightness — Built-in light sensor automatically adjusts brightness for day and night driving, with manual levels available for personal preference.
- Universal Compatibility — Works on any car, truck, or motorcycle with a USB port.
- Switchable MPH & KM/H — One-button switch between mph and km/h
Specification
Specification
- Item Type: Head-up Display
- Brand: KUOWEIHUD
- Product Model: H4
- Material: ABS + PC
- Dimensions: 3.92 x 2.56 x 0.79 in / 99.5 x 65 x 20 mm
- Power Supply: Car USB Port
- Input Voltage: DC 5V
- Speed Unit: KM/H, MPH (switchable)
- Display Data: Car Speed, Compass
What's in the Box
What's in the Box
- 1 x H4 HUD
- 1 x USB Power Cable
- 1 x Reflective Film
- 1 x Double-sided Tape
- 1 x User Manual
Simple 4-Step Installation
Simple 4-Step Installation
- Plug the USB power cable into your vehicle;
- Place HUD on dashboard;
- Stick reflective film on windsheild (Not required)
- Wait for GPS signal → Drive.
Tips:
- Before installation, please drive the car to an open outdoor area with strong GPS signal.
- Use our original OEM power cable for stable regulated voltage; third-party cables may cause startup failure.
- Applying reflective film can reduce ghosting and provide clear digital display.
Specific installation instructions can refer to Installation Guide: H4 Heads-Up Display (HUD)
FAQ - Frequently Asked Questions
📦 Orders & Shipping
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Processing Time: 1-2 Business Days.( No shipments on weekends )
- Delivery Time:
3-7 Business Days from United States Warehouse;
7-15 Business Days from China Warehouse.
Special circumstances may cause delays, please understand
- Track My Order: Once your order ships, you'll receive a tracking number via email. You can use it to track your package at any time.
- Do I have to pay customs or import taxes?
For orders shipped from our US warehouse, no customs fees apply.
For international shipments, customs duties may apply depending on your country's regulations. These are the buyer's responsibility.
↩️ Returns & Refunds
- What is your return policy?
We offer a 30-day return policy. Items must be unused and in original packaging. Please contact us at jhy90250@gmail.com to initiate a return.
- My item arrived damaged. What should I do?
Please contact us within 48 hours of delivery with photos of the damaged item. We will arrange a replacement or full refund promptly.
📬 Contact & Support
- How can I contact customer support?
You can reach us at jhy90250@gmail.com. You can also click the icon in the bottom right corner to contact us online. We respond within 48 Hours.
- Do you offer a warranty?
Yes, all our products come with a 12-month warranty against manufacturing defects. Please contact us if you experience any issues.
Colorful LED Atmosphere Light
- Make the driving so cool -
Product Feature
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Compact and Simple Design
This Car HUD embodies a compact and simple design. Its large, streamlined housing is discreet, fitting seamlessly onto your dashboard without creating visual clutter.
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GPS+BDS Dual Chipsets
Using "real 10 Hz high refresh rate", GPS + Beidou dual chipsets, the digital speed refresh smoothly, please check our product video, you can get "how smoothly, no skip speed " very clear. A slight margin of error (0.6-1.8mph /h) is normal for all GPS-based speed tracking devices.
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Large Font Display
The car heads-up display with colorful LED digital screen and large font for cool and clear speed visibility.
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Over-speed Alarm
if car speed is over your preset speed limit(Default: 74 MPH), the device will alarm on.
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Automatic & Adjustable Brightness
Brightness can be automatically adjusted according to ambient light, you can also adjust the brightness by yourself.
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Universal
Since the GPS HUD powers via a standard USB port and gets its data from GPS satellites, it is universally compatible with any vehicle that has a USB power source. such as cars, trucks, motorcycles, etc.
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How to Install
- Before installation, please drive your car to outdoor places, and open your car window -
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1. Connect the provided cable into the HUD.
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2. Plug the provided USB cable into your car's USB power port or a cigarette lighter USB adapter.
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3. Place the HUD on your dashboard, stick the reflective film on your car windshield glass.
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Product Display
- When the device turned on -
Package Included
1 x Head Up Display
1 x USB Cable (2.5M)
1 x Double-sided Tape
1 x Instruction Manual