WiiYii P18 GPS 4x4 Inclinometer off-Road HUD head Up Display Car Auto Tracker Speedometer Gradient Meter Tools for All Car Packinglist 1* host body, 1* usb cable & cigar lighter 1* non-slip mat, 1* English Manual P18 HUD Car GPS Gradient Meter Product introduction: P18 product is a driving recorder that conveys information based on satellites. GPS system can measure the slope and inclination angle of off-road vehicles, as well as the inclination data of up and down slopes. Provide vehicle speed, direction, engine load notification, with high-precision satellite real-time clock and direction functions. The information is displayed directly in front of The driver's line of sight. You can understand the current road information without any dangerous operations. PITCH ANGLE:-40°~+40° Accurately display the accuracy of downhill and uphill scales Equipped with slope scale tips, it will alert when eitherdownhill or uphill reaches more than 30 scale degrees SATELLITE POSITIONINGREAL-TIMEVEHICLE SPEED p18 can measure speed through satellite positioning and it will automatically alarm if overspeed, so it can save you from looking down the speedometer and drive safely The height is roughly level with the drivers eyes And the projected text and images are adjusted at an infinite distance from the focal length View your fuel level, RPM Engine temperature, voltage, and more together with directions or any other widget. GPS can be used for all models The navigation position displayed on the windshield of the car during driving. On the device The driver can view information such as time, vehicle speed, fuel temperature and GPS information while driving. FQA: 1.How to use GPS inclinometer?GPS flashing is the state of searching for stars. Please move the car to an open road. After the satellites are found, the GPS light stops flashing and keeps on. It can be used normally.2.Want to set up inclinometer calibration?After the inclinometer is displayed normally, it is placed steadily, short pre the power button, and you hear a beep, the calibration is completed.3.What should I do if the speed of the car is not accurate?Fine-tune the vehicle speed, such as the instrument display 100 Km/h, HUD display 105Km/h, turn the dial on the dial to adjust the parameter value to 102.4.Does the machine have a compa direction?Yes, on the far right side of the intuitive machine.5.Does the product have a total mileage counter or is the distance reset every time you start the engine?Synchronization of total mileage.6.How does gps work, do you need from the Internet?It works with GPS directly.7.What is the length of the main power cable?Standard 1.8 meters.8.Is it accurate the altitude that marks above sea level?Yes,according to satellite positioning.9.Can I turn off the ambient light if I dont want it?OFF turns off the ambient light,BLUE blue ambient light, REDred ambient light,PURPLE purple ambient light.10.Can itsee the time to accelerate 0-100km?Yes,sure.Accelerationto 100 kilometers refers to the acceleration time from 0 to 100km/hwhich is a power test of the car.