As a practical equiment for your Motorcycle.Engine trouble light reminding.Displaying time. travel distance.Waterproof, -proof, durable.Easy installation and simple operation.Product Name: Motorcycle OdometerBlack: positive yellowRed: battery positive blue/redBlue: , 12V is controlled Green/BlackBlue and white: fuel signal lineBlack and white: sensor signalOperating voltage: 10V-15VSpeed calibration: 425Hz corresponds to 60KM/HGreen: negative sensorSpeed calibration: 166Hz corresponds to 10 x 1000r/minLCD screen: 7 colors backlight short press to switchVoltage: Less than 113V undervoltage flashes, higher than 117V undervoltage is not displayedFuel calibration: E point 98ohm, F point 8ohmOrange: Left turn, 12V positive control yellow/whiteLight blue: Turn right, 12V is controlled Green/RedKeys: Short press the left button to switch subtotals. In the subtotal state, press and hold the right button for 3 seconds to clear the subtotal. Press and hold the left button for 2 seconds to flash. Short press the right button to switch between metrics and press the left button to switch to the clock. Set, the hour digit flashes, short press the left button to add 1, then short press the left button, the minute digit flashes, short press the right button to add 1, then press the left button to save and exit.colour:BlackMaterial:ABSPackage Contents:1 x LCD odometerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.