2.2 Inch Car HUD Display OBDII Speedometer with Real Time Speed Distance Time for VehiclesFeatures112 Main Functions: This smart digital meter has many functions, including speed, RPM, water temperature, battery voltage, fuel consumption, driving time, driving distance, oil temperature, air-fuel ratio, intake pressure, turbine pressure, and data stream. 2Adopt Imported AI Chip, Intelligent Reminder: Speed color will change at different speeds. It will change to red color once the speed is over 120. 3Simple And Easy To Operate: The digital display is easier to read. Short press in the button vertically to switch the display mode, pull right to choose the mode, and long press in to enter the setting. 4Alarm System: Set different parameters for the over-limit alarm and audible alarm to improve driving safety. 5Car Performance Test: Test the vehicle\u0027s 100km acceleration and driving distance, the test results are accurate, and let you know the performance status of the vehicle.SpecificationFeatures:12 Main Functions: This smart digital meter has many functions, including speed, RPM, water temperature, battery voltage, fuel consumption, driving time, driving distance, oil temperature, air-fuel ratio, intake pressure, turbine pressure, and data stream.Adopt Imported AI Chip, Intelligent Reminder: Speed color will change at different speeds. It will change to red color once the speed is over 120.Simple And Easy To Operate: The digital display is easier to read. Short press in the button vertically to switch the display mode, pull right to choose the mode, and long press in to enter the setting.Alarm System: Set different parameters for the over-limit alarm and audible alarm to improve driving safety.Car Performance Test: Test the vehicle's 100km acceleration and driving distance, the test results are accurate, and let you know the performance status of the vehicle.Specifications:Item Name: Smart Digital MeterMain Material: ABSDisplay Size: 2.2 InchEnvironment Temperature: -40 - +80Operating Voltage: 9V-16Vdc (12Vdc/ 400mA)Relative Humidity: 10%-95%Alarm Sound Level: 30dB(A)Atmospheric Pressure: 86-106KPaEnvironmental Noise: 60dB(A)Color: BlackProduct Size: 73*68*46mmProduct Weight: 50gPackage Information:Package Size: 14.3*9*5.1cmPackage Weight: 180gPackage List:1 * Smart Digital Meter1 * OBD Cable1 * Non-Slip Mat1 * ManualPackage List1 * Smart Digital Meter1 * OBD Cable1 * Non-Slip Mat1 * Manual