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Head Up Displays
  • P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools
  • P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools
  • P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools
  • P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools
  • P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools
  • P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools
P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools
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P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools

  • 2 - 499 Pieces
    $25.99
  • 500 - 1999 Pieces
    $24.99
  • >= 2000 Pieces
    $23.99

Customization:

Customized logo（Min.Order: 50 pieces）
Customized packaging（Min.Order: 500 pieces）
Manual in your language（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 2000 pieces）
View product details

P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Multi-Metric HUD Display: Equipped with a 480x240 LCD screen, the P21 HUD provides real-time data including speed (km/h), RPM, fuel efficiency (A/F ratio), trip distance, and minimum speed.
  • OBD2 Diagnostic Integration: Offers vehicle diagnostics via the OBD2 interface, enabling monitoring of engine performance, fault codes, and maintenance alerts.
  • GPS-Enhanced Navigation: Combines GPS functionality with slope meter and windshield projection for precise speed tracking, route guidance, and terrain awareness.

Key features

  • 1. Durable Composite Material Construction

    • With a lightweight yet rugged composite material body, ensure reliable performance in harsh vehicle environments. ~30% lighter than traditional metal-based HUDs*, reducing strain on dashboard mounts while maintaining structural integrity.

  • 2. Customizable Interactive Display

    • With fully adjustable display settings, prioritize critical metrics like speed, RPM, or fuel efficiency to suit driving needs. Unlike fixed-interface models, tailor the HUD layout for seamless focus on key data points.

  • 3. High-Resolution Clarity for Real-Time Readings

    • With a 480x240 LCD screen, view sharp, sunlight-readable metrics even in bright conditions. ~50% sharper than standard 320x240 HUDs*, ensuring precise monitoring of speed and engine performance.

  • 4. OBD2 Integration for Universal Compatibility

    • With OBD2 interface compatibility, effortlessly connect to most modern vehicles for real-time diagnostics and performance tracking. Ideal for both daily commutes and commercial fleet management scenarios.

  • 5. OBD2 Compliance & Automotive Safety Standards

    • Certified to OBD2 standards, ensuring seamless integration with vehicle systems and adherence to automotive safety regulations. Designed for stable operation in high-vibration environments.

Product details

P21 HUD Head up Display Car Tester on Board Computer Clock Slope Meter GPS Speedometer OBD2 Diagnostic Tools

The P21 HUD Head Up Display is a versatile in-vehicle diagnostic tool combining real-time GPS speed monitoring, OBD2 diagnostics, and a customizable LCD interface. Designed for drivers seeking precision and convenience, it integrates seamlessly into dashboards or windshields, offering clear visibility of critical metrics like speed, RPM, fuel efficiency, and slope angles.

Technical specifications

FeatureSpecificationApplication Scenario
Display Type480x240 LCD with high-contrast screenViewing metrics clearly in daylight
HUD FunctionGPS-enabled speedometer & diagnosticsReal-time vehicle performance monitoring
InstallationOBD2 interface (plug-and-play)Quick setup without wiring modifications
PositionDashboard/windshield mounting optionsEnsuring unobstructed visibility
MaterialDurable composite/plastic constructionWithstanding vibration and temperature changes
LCD StandardAnti-glare coatingReducing screen reflections in sunlight

Customization guide

Adjustable display settings let users prioritize metrics (e.g., speed, RPM, or fuel efficiency) to match specific driving scenarios. Brightness and interface layouts can be customized for optimal readability in varying light conditions.

Get inspired

With the P21 HUD, drivers gain instant access to critical vehicle data without diverting their gaze from the road. Ideal for both daily commuters and off-road enthusiasts, its GPS integration and diagnostics make it a reliable tool for enhancing safety, efficiency, and performance analysis.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Display Resolution480x240 (baseline)480x240 (+15% clarity)800x480 (+30% detail)*
GPS Accuracy±2 km/h±1 km/h±0.5 km/h
Diagnostic ScopeBasic OBD2 codesExpanded diagnosticsFull vehicle system scan
DurabilityIP54 ratingIP65 ratingMilitary-grade IP68

Supplier's note

  1. Technical Breakthroughs:

    • High-Resolution LCD: The Pro model’s 800x480 display offers 30% sharper visuals than competitors, ensuring critical data remains legible even in bright sunlight.
    • OBD2 Plug-and-Play: Eliminates complex installations, reducing setup time by 50% compared to wired alternatives.
    • GPS Precision: The Pro’s ±0.5 km/h accuracy outperforms industry benchmarks by 20%, critical for racing or route optimization.

  2. Optimal Version Selection:

    • Base Model: Ideal for casual drivers prioritizing budget-friendly, basic metrics (e.g., speed and fuel efficiency).
    • Advanced Model: Best for professionals needing expanded diagnostics (e.g., mechanics or fleet managers).
    • Pro Model: Targets performance enthusiasts and harsh-environment users (e.g., off-roaders or racers) requiring unmatched durability and precision.

With the Pro’s IP68 rating, you can withstand water submersion during off-road adventures. Pair its GPS accuracy with high-resolution visuals to track speed and terrain with military-grade reliability.

Frequently asked questions

  • Which HUD model is best for real-time RPM and fuel efficiency monitoring in vehicles?

  • Is the 480x240 LCD resolution sufficient for clear dashboard visibility during daytime driving?

  • Can I customize which metrics (e.g., slope, fuel efficiency) appear on the P21 HUD display?

  • How does the OBD2 interface simplify installation compared to other HUD devices?

  • Does the GPS speedometer provide accurate real-time speed readings for highway driving?

  • Is the P21 HUD compatible with all car models using the OBD2 standard?

  • How do I clean the LCD screen without damaging its anti-glare coating?

  • Does the P21 display fuel efficiency and slope angle for off-road or hilly terrain?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Head-Up Display (HUD) SystemsReal-time data for driversResolution: 320x240 (Industry) ▶ 480x240 (Base ▲) ▶ 800x480 (Advanced ▲▲) (ISO 9001 certified)
Installation: Manual (Industry) ▶ OBD2 Plug-and-Play (Base ▲) ▶ Wireless OBD2 (Advanced ▲▲)		Clearer visuals, real-time metrics, easy setup (Base)
Wireless flexibility (Advanced ▲▲)		Higher cost for Advanced models (▲▲), requires OBD2 port
OBD2 Diagnostic ToolsVehicle diagnostics for mechanics/driversParameters: Basic engine codes (Industry) ▶ RPM/Fuel Efficiency (Base ▲) ▶ + Transmission/ECU (Advanced ▲▲)
Compatibility: Limited vehicles (Industry) ▶ SAE J1962 Standard (Base ▲) ▶ Multi-Protocol (Advanced ▲▲)		Real-time diagnostics (Base ▲), broader vehicle support (Advanced ▲▲)Advanced models expensive (▲▲), technical knowledge required
GPS SpeedometersMonitoring speed and efficiencyAccuracy: ±2 km/h (Industry) ▶ ±1 km/h (Base ▲) ▶ ±0.5 km/h (Advanced ▲▲) (GLONASS integrated)
Metrics: Speed Only (Industry) ▶ + RPM/Fuel Efficiency (Base ▲) ▶ + Trip Distance/Slope (Advanced ▲▲)		Precise speed tracking (Base ▲), slope monitoring (Advanced ▲▲)GPS dependency, requires mounting
Dashboard GaugesTraditional gauge displaysCustomization: Fixed Gauges (Industry) ▶ 3 Custom Gauges (Base ▲) ▶ 5+ Gauges + Themes (Advanced ▲▲)
Resolution: 240x120 (Industry) ▶ 480x240 (Base ▲) ▶ 800x480 (Advanced ▲▲)		Flexible display options (Base ▲), high-resolution visuals (Advanced ▲▲)Less integrated than HUDs (Industry), takes up dashboard space
Windshield HUDsDaytime driving visibilityGlare Resistance: 500 cd/m² (Industry) ▶ 800 cd/m² (Base ▲) ▶ 1200 cd/m² (Advanced ▲▲) (ISO 15004)
Mounting: Manual (Industry) ▶ Magnetic (Base ▲) ▶ Wireless (Advanced ▲▲)		Better sunlight visibility (Base ▲), wireless ease (Advanced ▲▲)Higher cost (▲▲), may block windshield view
Digital TachometersEngine performance monitoringRPM Range: 0-8000 RPM (Industry) ▶ 0-10,000 RPM (Base ▲) ▶ 0-15,000 RPM (Advanced ▲▲)
Response Time: 200ms (Industry) ▶ 100ms (Base ▲) ▶ 50ms (Advanced ▲▲)		Faster response (Base ▲), high RPM tolerance (Advanced ▲▲)Limited to engine metrics (Industry), no multi-function support

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