Describe: Car has OBD and GPS dual systems, it fits the 98% car. GPS functions can be displayed simultaneously at OBD mode.The system is more stable and smooth, data is more abundant. 9 display screens can be switched. Rotatable bracket, 2 installation methods, center console installation + suction on the windshield. OBD2 mode: speed, rotation speed, water temperature, voltage, fuel consumption, clock, single travel distance, single travel time, oil temperature, turbine pressure, acceleration test, brake test, overspeed alarm, engine failure alarm, fault code elimination, water temperature alarm, speed alarm, voltage alarm, mile switching, fatigue driving reminder, automatic and manual brightness adjustment . GPS mode: speed, altitude, number of satellites, clock, single driving distance, single driving time, compass. Features: 1. Dual system OBD + GPS 2. 9 kinds of interfaces are optional, function freely collocation 3. Read ECU data of the whole car 4. A of installation methods, the separation bracket can be rotated 180 degrees, the installation is flexible and convenient 5. 3.5-inch TFT screen 6. Multiple alarm functions to improve driving safety 7. Fault code clearing function, convenient to solve the problem 8. Car satellite function, digital clock, altitude, and driving direction are all under your control 9. Up to 10 Hz refresh rate, there will be no lag delay Material: plastic colour: Black Package Contents: 1 x Heads up display 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.