Features: Applicable to domestic car series, Asian car series, American car series and European car series, Equipped with high-precision GPS + Beidou dual-channel module Fully automatic monitoring of vehicle driving conditions, Use the light intensity sensed by the sensor to adjust the screen brightness High touch screen with high display resolution, Designed with ABS+PC high temperature resistant material, Three languages switch between Chinese, Chinese and English, with the car, automatic sleep function when parking Main function and alarm function: Vehicle speed, time, voltage, altitude display, heading angle, number of satellites, compass display, driving time, driving mileage, mileage display, Overspeed alarm, altitude alarm. Product description: The multi-function display instrument, through the GPS/Beidou dual-channel module to the satellite Obtaining data, dual-signal stability and other advantages, common to all on the market It is a must-have artifact for self-driving enthusiasts. Product parameters: Vehicle Multifunctional Intelligent Pitch angle: -40~ +40 Roll angle: -40~ +40 GPS data refresh rate: 1 s Wireless transmission frequency: 2.4GHzGPS Speed accuracy: Less than 0.36Km/hGPS Voltage measurement range: DC11.5V ~ 30V Voltage measurement accuracy: 0.5V Working temperature: -40~+80 Cold time: 3 (average) Hot time: 1 s (average) Material: ABS colour: black Package Contents: 1 x C20-F vehicle-mounted multi-function intelligent instrument Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.