1.Equip with high-definition color LCD gauge, OBD+GPS dual working mode that can read more data, 5 kinds of variable color atmosphere lights, 12 kinds of different UI display interfaces, and free switching, give you a driving experience. 2.Automatically read and display vehicle data such as car speed, time, RPM, voltage, water temperature, distance, satellite number, altitude, travel direction, latitude, and longitude, oil temperature, acceleration test, brake test, turbo pressure, engine load, and other car data. 3.This OBD speedometer has Multiple alarm functions, including RPM, overspeed, water temperature, oil temperature, exhaust temperature, oil pressure, low voltage, turbo pressure, fuel pressure, fatigue driving, etc. 4.The installation method adopts an adjustable bracket, put on the dashboard or stick on the windshield, easy to operate and install without damage. 5.This heads-up display cars can read and display car data at a glance, so that you can only focus on driving, never lower your head when driving, and escort your safe driving. OBD2 gauge displays the OBD+GPS function by default. If the vehicle does not have the OBD2 protocol, the GPS function is automatically displayed. DisplayType:3-inch LCD Screen Functions:Automatically read and display vehicle data Features:Easy to Install,Safe Driving Compatible with More Vehicles,OBD2 gauge displays the OBD+GPS function by default Colour:black Material:plastic Package Contents: 1 set of 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.