Functional features: (1) Display function: vehicle speed display, power gear display, battery indicator, fault prompt, total mileage, single mileage, headlight and single driving time display. (2) Control/setting function: power switch control, headlight switch control, 6Km/h power control, wheel diameter setting, speed limit setting, instrument sleep setting, backlight brightness setting, voltage setting. (3) Harness Red (P+) instrument power line; Blue (VCC) electric door lock line; Black (GND) negative line; Green (RX) instrument data reception; Yellow (TX) instrument data transmission (4) Instrument setting function: long press the instrument up and down keys to enter the instrument setting. P01: backlight brightness, level 1 is the darkest, level 3 is the brightest. P02: mileage unit, 0: KM; 1: MILE. P03: voltage level: 24V, 36V, 48V. P04: : 0, no sleep; other numbers are, range: 1-60; unit: minute. P05: Power assist gear 1-9 P06: Wheel diameter: Unit, inch; Accuracy: 0.1. P07: Number of speed magnets: Range: 1-100. P08: Speed limit: Speed percentage range 0-100%, 100 represents 100% speed. P09: Zero start, non-zero start setting, 0: zero start; 1: non-zero start. P10: Drive mode setting 0: Electric drive (handle is invalid). 1: Electric drive (driven by turning the handle, invalid at this time). 2: Electric drive and electric drive coexist at the same time. P11: Power assist sensitivity setting range: 1-24. P12: Power assist start intensity setting range: 0-5. P13: Power assist magnet type settings have 5, 8, and 12 magnets, of which 5 and 8 are single Hall assist sensors. Setting 12 is used for dual Hall assist sensors. P14: This function has not been enabled. P15: This function has not been enabled. P16: ODO reset setting, long press the upper button for 5 seconds ODO reset Special function: Suitable for electric bicycles Placed on the vehicle: Handle color: black Material: plastic Package content: 1 x display screen Only the above package content, other products are not included. Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the actual object. The measurement allowable error is +/- 1-3 cm.