MH Head Up Display HUD for Car — OBD2+GPS Dual System, Windshield Projection & Dash Screen, Speedometer/Tachometer

MH Head Up Display is a compact OBD2+GPS HUD that projects real-time speed, tachometer, water temp, voltage and engine fault data so you can keep your eyes on the road.

This compact instrument gathers data from your vehicle’s OBD2 port or GPS satellites and presents it on a clear windshield projection or dash-mounted screen. It shows speed, RPM, coolant temperature, voltage, trip stats and diagnostic trouble codes, while offering custom alarms and multiple display layouts. The unit supports quick mode switching between OBD2 and GPS operation and includes brightness controls and mounting options for a clean, driver-friendly installation.

How does the HUD present driving data for safer driving?

The MH HUD places crucial driving information within your line of sight so you avoid looking down at your instrument cluster. Data is shown either as a windshield projection or directly on the small dash display, with selectable units and brightness levels to suit daytime or night driving.

• Displays speed, RPM, water temp, voltage, fuel consumption and trip info in real time.
• Adjustable backlight (1–8 levels) for clear visibility in all lighting conditions.
• Switchable units: km/h or mph, °C or °F.
• Two installation options: dashboard pad or windshield mount for optimal sightline.

Can it diagnose engine faults and clear trouble codes?

Yes — when connected to a compatible OBD2 port, the device reads diagnostic trouble codes and displays fault information so you can identify issues quickly. It also allows you to clear codes after repairs or checks with a simple button press, making it useful for basic fault management.

• Scans engine fault codes and shows readable fault descriptions.
• Clear fault codes with a short press of the OK button when appropriate.
• Monitor live sensor streams for troubleshooting and performance checks.
• Supports acceleration and brake tests to evaluate vehicle response.

What does dual-system OBD2 + GPS mean for compatibility and features?

The dual-system design lets the HUD use OBD2 data when your vehicle supports it, or GPS data when OBD2 is unavailable. OBD2 provides engine and vehicle-specific metrics; GPS mode supplies reliable speed, altitude, satellite time and basic trip statistics even in incompatible cars.

• OBD2 mode: full vehicle telemetry for OBDII/EOBD-compliant cars (post-2008).
• GPS mode: speed, altitude, satellite time, driving direction and single-trip mileage.
• Note: not compatible with many diesel, hybrid, or some regional brands listed in the manual.
• When OBD2 protocol isn’t supported, HUD falls back to GPS-only display automatically.

How can alarms and customization improve day-to-day driving?

Custom alarms let you pre-set thresholds for speed, engine temp, voltage and RPM so the HUD alerts you before conditions become risky. Multiple interface layouts and language options help tailor the readout to your preferences while keeping essential alerts prominent.

• Set overspeed alarm from 5–200 km/h and engine temp from 50–200°C.
• Adjust voltage alarms between 10.0–15.0V and RPM alarms from 1000–8000.
• Ten interface layouts and multi-language support for personalized display.
• Brightness and unit settings make the HUD suitable for varied driving environments.

Who is this for: The MH Head Up Display is aimed at drivers who want immediate, windshield-level access to speed, engine telemetry and basic diagnostics without extensive dashboard modification. It’s best for owners of OBDII/EOBD-compliant gasoline cars (typically model year 2008 and newer) who value safety, quick fault checks and configurable alerts. If you drive a diesel, hybrid, RV, pickup, or a vehicle from an incompatible brand listed in the manual, you can still use GPS mode for speed and trip data, but full engine telemetry may not be available.