Specification: 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 9.3cm 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) Note: No friction or contact between the hall probe and the magnet Engine rotate speed comes from the ignition signal. The sensor wire is normally contacted with the positive side of the magnetor or directly wired on the rectifier Oil Mass can be wired on the original sensor Do NOT wired on the headlight if it had been modified as the HID Xenon light. Instead, connect it on the headlight control wiring 1X Speedometer (As The Picture) Our working time is 9am-18pmChina time If you have any problem,pls feel free to contact us,we will try our best to help you resolve it. If you satisfy with our service, your positive feedback will be appreciated. Your encouragement and support will always keep us forwards. Many thanks! Please allow 1-2mm error due to manual measurement. The colors may have different as the difference display, please understand.