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 detected by the light source sensor to adjust the screen brightness LED screen, Designed with high temperature resistant PC material, Start from the car, automatic sleep function when parking Product description Product is a vehicle-mounted HUD multi-functional display instrument, through GPS/ The Beidou dual-channel module acquires data from satellites, and has the advantages of dual-signal stability, common to all models on the market, is an indispensable artifact for autonomous driving enthusiasts. Product parameters: Power supply: 5V Working temperature: -40℃~+80℃ GPS data refresh rate: 1s Wireless transmission frequency: 2.4GHzGPS Speed accuracy: less than 0.36Km/hGPS Clock error: less than 1 minute Voltage measurement accuracy: