Features: It is suitable for all mechanically operated models. The speedometer has a maximum display of 199 and can be set to kilometers/H and miles MPH. The tachometer shows a maximum of 10,000 rpm. The fuel gauge has two lines (8-98 ohms) and a three-line oil meter (33-565 ohms). The odometer has two types of cumulative ODO and 0 return TRIP. The default is ODO. Change the light by pressing the black button for 3 seconds. 7 colors can be switched freely. Press the button for 3 seconds to switch the backlight color when the odometer is in the ODO state. Specification: Condition: Brand New Color: Plating Material: Aluminum Alloy Wiring: Black-Positive Line Green-Negative Line Black Red - Speed Signal Line Blue and White - Oil Signal Package List: 1 x Tachometer Instruction: Switching between kilometers/H and MPH: Press and hold the button without releasing and then open the electric door. The screen displays P0000. At this time, the bit 0 flashes, long press to jump to ten digits 0 flashes, short ten digits display is 1, then long press Jump to the hundred digits to flash, short press 6 and hundreds of digits to display 6. Press and hold for thousands of digits, press 6 times to display 6 digits. At this time, the screen displays 00466, which means that 46.6HZ corresponds to 60 kilometers/H. Short press to skip (this item is not set), then the screen displays 1001, 1001 kilometers/H, if you want to switch to MPH, press and hold a single digit to flash, long press to switch to 1002, which means it has been set to MPH. Short press to jump to the next item Speed cylinder number setting: Connect to the above, short press the screen to display 2002, indicating that this time is 2 cylinders (166HZ corresponds to 10x1000RPM/MIN) short press skip long press one digit flash, then long press one digit 2 to 4 , indicating that it has been switched to 4 cylinders (333HZ corresponds to 10x1000RPM/MIN). Oil meter setting, short press screen display 3002, indicating that this is a 2-line oil meter, short press all settings to save and exit, long press single digit flash, then long press display 3003, indicating that it has switched to 3-wire oil meter, Short press to save and exit 1、It is suitable for all mechanically operated models. 2、The speedometer has a maximum display of 199 and can be set to kilometers/H and miles MPH. 3、The tachometer shows a maximum of 10,000 rpm. 4、The fuel gauge has two lines (8-98 ohms) and a three-line oil meter (33-565 ohms). 5、The odometer has two types of cumulative ODO and 0 return TRIP. The default is ODO.