Product Usage:Can display speed, speed, water temperature, voltage, turbine pressure, driving distance, driving direction, time, number of satellites, altitude, brake test, acceleration test, read data stream, etc.Overspeed alarm, speed alarm, water temperature alarm, etc.This smart stopwatch is displayed in both OBD2 and GPS modes at the factory. When there is no OBD2 protocol on the car, only GPS mode is displayed.InstructionsProduct selling points:Selling point 1: OBD+GPS dual systemSelling point 2: Rotatable bracket, 2 installation methods, center console installation + suction on the windshield.Selling : At present, the first ambient light with alarm, the ambient light is normally blue, and flashes red when the alarm occursSelling point 4: The first lower right screen with clock functionSelling point 5: 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.Selling point 6: Up to 10 Hz refresh rateSelling point 7: GPS function can be displayed at the same time in OBD mode, the first in the industrySelling point 8: When the speed is switched to MPH, 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 Gallon MPG.Selling point 9: 9 display screens can be switchedColour:BlackMaterial:ABSPackage Contents:1* Car LCD MonitorOnly the above package content, other products are not included.Note: Light 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.