Feature: -- As a practical equiment for your Motorcycle. -- Engine trouble light reminding. -- Displaying time. -- Total travel distance. -- Waterproof, sun-proof, durable. -- Easy installation and simple operation. Description: Product Name: Motorcycle Odometer Black: positive yellow Red: battery positive blue/red Blue: High beam, 12V is controlled Green/Black Blue and white: fuel signal line Black and white: sensor signal Operating voltage: 10V-15V Speed calibration: 42.5Hz corresponds to 60KM/H Green: negative sensor Speed calibration: 166Hz corresponds to 13*1000r/min LCD screen: 7 colors backlight short press to switch Voltage: Less than 11.3V undervoltage symbol flashes, higher than 11.7V undervoltage symbol is not displayed Fuel calibration: E point 98, F point 8 Orange: Left turn, 12V positive control yellow/white Light blue: Turn right, 12V is controlled Green/Red Including: As Shown Features: --Easy to Install --High Quality Keys: Short press the left button to switch total 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. Please tell us first when you have any problem, we will give you the best service and solve the problem ASAP. Thank you so much.