When you connect the Mechanical one, please remember the Green wire is negative, the Black wire is Electric door lock and the Red wire is connect to power. Motorcycle Meter LED Digita Indicator Light Tachometer Odometer Speedometer Oil Meter Multifunction With Night Vision Dial Description: Working voltage 8-18V Rated voltage DC 12V Working temperature -20 - +70 Celsius Storage temperature -30 - +80 Celsius Digital display speed range 0-199km/h Needle display rpm range 0-12000rpm Digital display odo distance range 0-99999.9km Gear indicator 1-6 Backlight Blue Installation diameter 9cm Height 5.3cm Cable Length 12cm Features: Large anti -UV Anti-g lare LCD screen All-in-one design with digital signal processing system Using chip technology for most of the components Multiple indicator functions as the L/R Turn Signal, High Beam, Position Lights, N Lights High withstand voltage up to 100V Waterproof Anti-vibration Fits for most motorcycle that is with 4 stroke, 2/ 4 Cylinders (default as 1 cylinder of the setting) Function Knob Instruction: 1.Meter working voltage is 12V. 2.Short press the right button for shift between ODOTRIP . 3.When the meter displayed TRIP, long press the button 3s to reset the TRIP meter. 4.When the meter displayed ODO, long press the button for shift between KMMI. 5.Long press the button and power on ,keep 5s to get to the setting mode ,the perimeter bit flash, short press the button to modify the number ,No operation automatically move to the next item. The order is :Perimeter - Speed pulse number -rev pulse number - Fuel sensor - ODO, Long press or power off to exit. 6.Negative control: leftright turn signal ,High beam , Positive control: Outline Marker Lamps. 7.The symbol flash when : voltage 15.0V voltage 11.9V; 8.The symbol does not display when: 12.0V Wiring Instructions (from left to right) Color: Light Blue :Right signal Red :Power+the line from electric lock Blue White :Fuel level White Brown:Position lamp BlackSwitch Blue : High beam Orange : Left signal Green:Power Yellow black:Pulsed coil(Engine speed) Color: Green/Red Pink Blue/Red Green/Black Yellow/Red Yellow/White Function: Gear N Gear 1 Gear2 Gear3 Gear4 Gear 5 Color: Green/White Function:Gear 6 Color: Red/White Black/White Green Function: Speed sensor+ Speed sensor signal Speed sensor Package includes: 1X Speedometer (As The Picture)