Majesun Car Universal HUD Digital Speedometer Universal GPS Car HUD Head Up Display MPH Overspeed A
Special reminder:The working voltage of this product is 5V, and it is forbidden to use a voltage higher than 5V for power supply.After the power is turned on, the compass icon flashes to indicate star search, and it can be used normally only after the icon stops flashing and is always on.Frequently Asked Question1. No display on the screen, no electricityCheck whether the USB cable is damaged, replace the USB cable for testing, and prohibit using a voltage higher than 5V for power supply. 2. No vehicle speedThe power-on satellite icon flashes to indicate the satellite search status. Underground parking lots, tunnels, under bridges, and when there are obstacles, it cannot connect to the satellite. Move the car to an open road and wait for the satellite icon to stop flashing, then it can be used normally.3. Time Calibration1. Adjust the time zone of your location when you do not receive satellites2. After finding the satellite, adjust and synchronize with the local time4. Inaccurate speedCheck whether the unit is correct, km KM/mile MPH, (speed unit switching reference setting 5 items)When the car leaves the factory, the manufacturer increases the speed displayed on the dashboard by 5-7%.Fine-tune the vehicle speed, if the instrument shows 100 Km/h, the machine shows 105Km/h, adjust the parameter value to 1025. Wrong display of driving directionWhen there is no speed, the satellite cannot identify your driving direction, and it can only be displayed normally when the speed exceeds 5KM/H6. The speed is still displayed after the car stopsUnderground parking lots, tunnels, and overpasses, when there are obstacles, the signal will be unstable and the satellite will drift. Please drive the car to an open road7. Turn off the buzzerLong press the button for 2 seconds to turn off the buzzer Press and hold again for 2 seconds to turn on the buzzerSuitable for all vehicles - unlike other car head up displays, this GPS speedometer is compatible with all vehicles worldwide and can simultaneously display speed MPH, travel time, mileage, time, direction, etc., with fast refresh speed and no delay.Multi functional display - Majesun HUD is equipped with a 5-inch high-definition LED screen for clearer information display, making it clear and natural no matter where you place it. Multifunctional display: speed KM/H&MPH, clock, compass, travel time, travel distance, number of satellites, acceleration time, latitude, longitude, altitude, fatigue driving, overspeed alarm icon, etc. High technical content, it brings more safety and fun to your driving.Compass with GPS navigation - Compass with GPS navigation can help the driver indicate direction, so you won't get lost. Equipped with light sensors that adjust brightness according to different lighting conditions, it can be very clear in bright light, providing a safer day and night driving experience.Plug and play, easy to install - The on-board intelligent speedometer display screen has the characteristic of easy plug and play operation. Simply install the device near the dashboard. It is powered through the included cigarette lighter USB cable.Please note: This product operates at a voltage of 5V, and it is prohibited to use a power supply higher than 5V. CE FCC RoHS certification, excellent quality. If you have any questions about this product, please feel free to contact us. We will reply to you within 48 hours to help you solve the problem.