1 Applicable to Asian cars, American cars, European cars. 2 Equipped with high-precision satellite GPS signal module. 3 Automatically monitor vehicle driving conditions. 4 Adjust the brightness of the screen by using the sensitivity of the light sensor. 5 Free rotation, which is more sensitive. 6 It adopts color HD LCD display with high resolution. Specification: X90 Slope Meter language :English New products after August 31 The display unit contains: metric and you can configure the display unit of speed what you want 1.How To Switch From Miles To Km? it both MPH/h and KM/h Press M , switch MPH/h inch and KM/h metric (Note: Altitude is in feet in MPH/h mode and meters in KM/h mode) (Explanation: MPH/h icon lights up to MPH/h Mode, MPH/h icon is off to indicate KM/h mode) 2.How to adjust the time? In the state of power off, press the power button. After the screen lights up, press and hold the M button / power button 3-4 seconds immediately 1. Decrease time: Long press the M key will automatically enter the time adjustment interface. M key (left): adjust the hour hand, power button (on the right): adjust the second hand. 2. Add time: long press the power button. Package Includes: 1 SET X90 GPS Speed Slope Meter (Host, ignition wire, manual) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.