Usage Tips:Features Multifunction Speedometer Displays the speedometer, clock, number of satellites, direction of travel and other information in your driving view. You can safely view driving information without taking your eyes off the front, allowing you to relax and focus on driving operations more safely. WORKS FOR ALL VEHICLES G4S GPS Speedometer Display can display the most important MPH data and driving time.HD data display equipped with an automatic light-sensitive screen, no need to adjust manually, it will automatically adjust the most suitable display brightness according to the external light, whether in the daytime or at night you can get the clearest data, no longer worry about the problem of not being able to see the display when the sun is strong. PREMIUM NEW DESIGN FOR 2022 G4S Head-Up Displays are equipped with GPS, dual-mode chips, with fast refresh speed and no lag.Speedometers collecting speed from GPS satellites. No relation with the car engine, therefore, it's 100% universal for all vehicles include car, truck, pick-up, SUV, motorcycle, golf cart,and so on. What is the most important thing about driving? As we all know, life safety is the first, speeding and fatigued driving are not allowed.Just focus on your driving, could read speed at a shine with the digital numbers but without having to look down; G4S simply displays directly to you whatever angle you set it up, no need to make effort to have a look, which may lead to make distractions or even cause accident. Just mount the device near the dashboard or use the 360-degree rotating suction cup mount to mount the device to the windshield, plug and play, powered by the cigarette lighter USB cable, automatically powers on and off according to the engine ignition.Note: Because G4S depends on the car power supply to work, it can't keep the previous distance data when the car is turned off, and can't accumulate the total distance driven with the power off. WORRY-FREE SERVICEG4S Are CE FCC RoHS certified with excellent.Along with our product we provide friendly customer service if there are any questions or concerns. If you have any question.Please send an email to consult us, we will provide you with online service within 48 hours and promise to make you 100% satisfied. Specification: Color: White light Screen size: 2.2inch Product size: 52X52mm Box size: 10x7.5x7.5cm G4S GPS Speed Meter Troubleshooting 1. No display on the screen, no power Check whether USB line is damaged, replace USB line test, and prohibit using voltage higher than 5V 2.No speed The satellite icon flashes indicating the star search state. Please move the car to the open road and wait until the satellite icon stops flashing 3.The speed is not allowed Check unit correct, km KM Imitmile MPH, (speed unit switch reference settings) When the car leaves the factory, the manufacturer increases the speed displayed on the dashboard by 5-7%, and the international standard is subject to satellite data Fine-tune the vehicle speed, if the meter displays 100 Km/h, the machine displays 105 Km/h, and adjust the parameter value to 102 4. Driving direction is wrong The satellite can't tell your direction when there have no speed, and the speed exceeds 5KM.H 5. The speed is still displayed after the car is stopped Underground parking lot, tunnel, overpass, with shielding will make the signal unstable satellite drift, please drive the car to the open road 6.Turn off the buzzer The wheel dials left for 2 seconds to turn off the buzzer and dial left again to open the buzzer Tips: Please allow 1-3cm error of measurement. Photo color might be a little different from the actual product due to color display of different monitors. Product Includes: 1X HUD 1X USB cable 1X Suction Cup Holder 1X Double-sided tape 1X Instructions