Universal M3 OBD2 Digital Head-Up Display RPM Speedometer Unit
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The M3 OBD2 Head-Up Display projects real-time driving data directly onto your windshield with crisp white LED text for maximum visibility day or night. It displays essential vehicle stats including speed, RPM, coolant temperature, and battery voltage, and includes built-in fault warnings and fatigue alerts. Compact and plug-and-play, it is compatible with most OBD2 vehicles and requires no tools for installation.
add_circle The Upside
- check Easy plug-and-play installation with no tools required
- check Improves driving safety by keeping eyes on the road
- check Provides comprehensive vehicle data at a glance
remove_circle The Downside
- close May not be compatible with all OBD2 vehicles (some require adapter)
- close White text may be less visible in very bright sunlight
- close Limited to OBD2 data; no GPS-based features
Specifications & features
Key features
- check_circle Displays speed (km/h or mph), engine RPM, coolant temperature, and battery voltage
- check_circle Real-time data via OBD2 connection - no GPS signal needed
- check_circle Built-in safety alerts: overspeed, high temp, low voltage, RPM limit, fatigue driving
- check_circle White LED text with automatic brightness adjustment for clear day/night use
- check_circle Compact with glare-reducing hood and large font design
Specifications
Alerts
Overspeed, High Temp, Low Voltage, RPM Limit, Fatigue Driving
Brightness Adjustment
Automatic
Connection
OBD2
Data Displayed
Speed, RPM, Coolant Temperature, Battery Voltage
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