Features: (1) Display Function: Speed display, power-assisted gear display, power indicator, fault prompt, total mileage, single mileage, headlights, and single driving time display. (2) Control/Setting Function: Power switch control, headlight switch control, 6Km/h boost control, wheel diameter setting, speed limit setting, meter sleep setting, backlight brightness setting, voltage setting. (3) Harness: Red (P+) meter power cord; Blue (VCC) electric door lock wire; Black (GND) negative wire; Green (RX) Meter data receiving; Yellow (TX) Meter data transmission. (4) Meter Setting Function: Long press the up and down buttons of the meter to enter the meter settings. 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 sleep time, range: 160; unit minutes. P05: Power assist gear 19. P06: Wheel diameter: unit inch; precision 0.1. P07: Number of speed magnets: range 1100. P08: Speed limit: speed percentage range 0100%, 100 means full speed. P09: Start mode setting, 0: zero start; 1: non-zero start. P10: Drive mode setting: 0: power-assisted drive (throttle invalid); 1: electric drive (throttle active, pedal assist inactive); 2: power-assisted and electric drive both active. P11: Assist sensitivity setting range: 124. P12: Assist start intensity setting range: 05. P13: Power-assisted magnet type setting: 5, 8, and 12 magnets; 5 and 8 are single Hall sensors; 12 is for dual Hall sensors. P14: This function is not available. P15: This function is not available. P16: ODO reset setting: Long press the up button for 5 seconds to reset ODO. Special Features: For Ebike Placement on Vehicle: Handlebar Color: Black Material: Plastic Package Contents: 1 x Display Note: Only the above package content is included; other products are not included. Light reflection and different displays may cause slight color differences between the image and the actual item. Measurement error allowed is +/- 13 cm.