Function: -As a practical equipment for your motorcycle. - Engine fault light reminder. -Time display. -Total travel distance oacute;lives. -Waterproof, sunproof, durable. -Easy installation and simple operation. -Easy to install -High quality 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: sensor negative Speed calibration: 166Hz corresponds to 13*1000r/min LCD screen: 7 color backlight short press to switch Voltage : below 11.3V undervoltage symbol flashes, higher than 11.7V undervoltage symbol is not displayed Fuel calibration: E point 98Ω, F point 8Ω Orange: turn left, positive control 12V yellow oacute; yellow/white Light blue: turn right, 12V is controllable green/red Including: As picture shown