OBDHUD P22 OBD2 GPS HUD Head Up Display Fits All Car Models On-board Computer Water Temperature Fuel Consumption Speedometer Operating voltage: 11V~18Vdc (12Vdc/200mA)This product is a dual system: select the language after booting, then select the OBD or GPS system, and automatically enter the last selected system without any operation for 5 secondsFunctions and buttons 1. Ambient light: change with vehicle speed and speed (in setting)2. Buttons: Short pre: switch the display mode, enter the setting menu to confirm optionsLong pre in: enter settings, after adjustment, long pre to save and exitPre left button: toggle left display, enter settings and select options,and the inclinometer display interface short pre to calibratePre Right: Toggle the display on the right, go to Settings and select Options.3. Bracket: for hanging gla view4. Sensitive components: automatic adjustment5.OBD cable interfaceInclinometer CalibrationShort pre the left and right keys: there is a drop and the setting is completedtime calibrationEnter settings: adjust the system time, short pre the right button to adjust the time, long pre to save and exit after adjustment Made of ABS+PC material, non-toxic, odorle and renewable, it is a green and environmentally friendly material that can be recycled Support 12 kinds of text display (English, Chinese Simplified, Chinese Traditional, Ruian, Korean, Japanese, Thai, Arabic, Spanish, Malaysian, German, French) Split bracket, the bracket can be rotated 360 in all directions About compatibility:1. Suitable for all car models in gps mode, the value shows GPS function and incline meter2. OBD mode is suitable for gasoline vehicles after 2008, all functions can be displayed3. Before 2008, almost 80% of the cars could not use the OBD mode and need to switch to the GPS mode.4. The OBD function cannot be used on most gasoline-electric hybrid vehicles (hybrid vehicles), Pickup, and Mini Bus, and the GPS mode needs to be switched.5. Some old diesel powered cars, SUVs, ORVs can only use GPS functionIf you are unsure, please