The first one TFT LCD GPS Speedometer display on the world, much more clear than the LED head up display on the windshield. GPS SPEEDOMETER: collecting speed from GPS satellites in real time, satellites lock in quickly. Much more accurate than the OBD hud especially when the car tire is replaced, then engine speed is not accurate at all. Furthermore, GPS hud has the same working logic as speed radar. MULTI-FUNCTIONAL: Two speed units: KMH and MPH. Over-speed beep alarm and compass. Auto adjusts brightness through sensor for Day & Night driving. Speed can be adjusted by hand slightly even. UNIVERSAL: is compatible with all vehicles which have cigarette lighter, eg, car, truck, trailer, tax, bus and so on. No wiring needed to the VSS (vehicle speed signal) and no trouble by the OBD2 interface issues. Plug and Use. High Quality: Best GPS chipset, and fast lock GPS satellites within 1 second. Smart design, start and off when vehicle started and shutdown, effective protection of the car battery. Standard package include a very good quality car adaptor.
