GPS Digital Speedometer for Car MPH, Heads up Display for Car, USB Cable Plug and Play, Automatic Brightness Adjustment, Speed Display for Drivers Golf Cart Truck SUV All Vehicles, LED Font Display

GPS Speedometer with MPH/KM/H Switchable DisplayThis GPS speedometer collects real-time speed data directly from satellites, not from your car's tire rotation. It matches the logic of speeding radar guns, helping you avoid tickets.Key FeaturesMPH / KM/H Switchable – Short press the right button to toggle between miles per hour and kilometers per hour.Plug and Play – Connect via USB cable to your car's USB port or cigarette lighter. GPS locks in 1–3 minutes outdoors.Speed Warning Alert – Press and hold left button to set a speed limit from 20 to 130. When exceeded, the display flashes faster as speed increases.7 Display Colors – Short press left button to cycle through 7 colors.Time Zone Adjustment – Press and hold right button to adjust time zone from -12 to +14 hours in 15-minute steps.Auto On/Off – Turns on with car ACC power and off when car is off. Zero standby drain.Clear Readout – Large green digits on black background. No ghosting or glare. Visible in sunlight or at night.SpecificationsSpeed Units: MPH / KM/H switchableRefresh Rate: 10Hz real-timeAccuracy: 1%–5% variance from dashboardGPS Lock Time: 1–3 minutes outdoorsDimensions: 0.98 × 3.15 × 2.09 inchesPower: USB port or cigarette lighterWhat's Included1 × GPS Speedometer1 × USB Cable1 × User ManualNote: Not for use in underground garages, tunnels, or indoors. Keep away from electromagnetic products for best signal.

• Switchable MPH and KM/H Display for Global Driving: This digital speedometer allows you to freely switch between MPH miles per hour and KM/H kilometers per hour with ease. Whether you are driving, you can always get the right speed unit for your location
• High-Precision GPS Speedometer in MPH: Unlike your car’s dashboard, this GPS speedometer collects satellite data to display your driving speed in MPH (miles per hour). It matches the same logic as speeding radar guns, helping you avoid costly tickets even if your vehicle’s odometer has errors
• Plug and Play Head Up Display (HUD): This head up display is designed for universal compatibility with cars, trucks, SUVs, motorcycles, and golf carts. Simply power it via the USB cable (included) – no need to connect to the OBD port or damage your car’s wiring. The compact size (0.98 × 3.15 × 2.09 inches) fits any dashboard
• Crystal-Clear Digital Speed Readout: Featuring large green fonts on a black background, this digital speedometer for cars eliminates ghosting and glare. Whether driving under direct sunlight or at night, the MPH display remains highly visible, allowing you to keep your eyes on the road without distraction
• Smart Auto On/Off & No Standby Drain: Equipped with an intelligent motion sensor, this HUD speedometer turns on automatically when your vehicle moves and powers off 3 minutes after parking. It draws zero power when inactive, protecting your battery while ensuring the device is ready every time you drive
• True 10Hz Refresh Rate for Real-Time Performance: Many imitations use low-end chips, but our GPS HUD features a genuine 10Hz high-refresh-rate chipset. Get real-time speed updates with only 1%-5% variance from your dashboard. Note: Initial GPS lock takes 10–30 seconds; not recommended for tunnels or underground garages
• Type-C Fast Charging Port for Reliable Power: Equipped with a Type-C interface, this HUD speedometer ensures stable and fast power delivery. Simply connect to your car's USB port or cigarette lighter adapter for plug-and-play operation
• SD Card Expandable Storage for Data Recording: The built-in SD card slot supports up to 32GB of expandable storage, allowing you to record and review your driving speed data. Never lose your trip information with this car head up display
• Adjustable Speed Warning Alert with Visual Flash: This GPS HUD lets you set a speed warning limit from 20 to 130. When exceeded, the digital display flashes rapidly to alert you. Stay safe and avoid fines with this over speed alert device