1: OBD+GPS dual system2: Rotatable bracket, 2 installation methods, center console installation + suction on the windshield.3: There are three units of turbine pressure: PSI, 100KPA, and bar. You can adjust and calibrate the turbine value to increase the fuel consumption unit KM/L.4: New alarm functions: turbine pressure alarm, exhaust temperature alarm, oil temperature alarm, oil pressure alarm, fuel pressure alarm5: Up to 10 Hz refresh rate, no lag delay6: GPS function can be displayed at the same time in OBD mode7: When the speed is switched to per hour, the water temperature will automatically switch to Fahrenheit, the single driving distance will automatically switch to Miles, and the fuel consumption will automatically switch to MPG gallons.8: 9 display screens can be switchedOBD2 mode: speed, rotation speed, water temperature, voltage, fuel consumption, clock, single driving distance, single driving 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 switch, fatigue driving reminder, automatic and manual brightness adjustment, can display more than 100 data streamsGPS mode: speed, altitude, and longitude, number of satellites, clock, single driving distance, single driving time, compassalarm functions: turbine pressure alarm, exhaust temperature alarm, oil temperature alarm, oil pressure alarm, fuel pressure alarmInput signal: 12VResolution: 3000x3000Type: OBD2 + GPS dual modePower supply mode: OBD interface power supplyColour:blackMaterial:plasticPackage Contents:1 set of heads-up displayOnly 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.