SDAO A501 OBD2 Head-Up Display – Smart HUD Speedometer with RPM, Fuel Data, Turbo Pressure & Safety Alarms

The SDAO A501 OBD2 Head-Up Display is an advanced on-board computer designed to show real-time engine and driving data directly in your line of sight. By connecting to your vehicle’s OBD2 interface, it helps you monitor performance, efficiency, and safety without taking your eyes off the road.

• 📊 Real-time OBD2 vehicle data display
• ⛽ Fuel consumption & air-fuel ratio monitoring
• 🌡️ Water & oil temperature readings
• 🌀 Turbo & intake pressure display
• 🔔 Multiple safety alarms & reminders
• 🧪 Acceleration & brake performance tests

• Vehicles with OBD2 interface (2008–2024)
• Gasoline vehicles with OBD2 protocol
• Not compatible with OBD1 vehicles

• Brand: SDAO
• Model: A501
• Item Type: OBD2 Head-Up Display
• Speed Units: KM/H, MPH (switchable)
• Temperature Units: °C / °F
• Functions: Speed, RPM, voltage, fuel data, turbo pressure
• Origin: Mainland China
• High-Concerned Chemical: None

• A501 OBD2 HUD: Full engine diagnostics & performance data
• GPS HUD: Speed-only display without engine data

• Locate the OBD2 port under the dashboard
• Plug in the A501 HUD
• Start the engine to activate the display
• Adjust units and alarms if required

• A501 Head-Up Display ×1

• Only compatible with OBD2 vehicles (2008–2024)
• Engine fault codes can be cleared via the device
• Units and alarms are user adjustable