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, 6 km/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: 1–60, unit: minutes. P05: Power assist gear 1–9. P06: Wheel diameter: unit, inch; precision: 0.1. P07: Number of speed magnets: range: 1–100. P08: Speed limit: speed percentage range 0–100%, 100 means 100% 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 (by turning throttle, pedal assist invalid); 2: power-assisted and electric drive coexist. P11: Assist sensitivity setting range: 1–24. P12: Assist start intensity setting range: 0–5. 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 e-bike Placement on Vehicle: Handlebar Color: Black Material: Plastic Package Contents: 1 x Display Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1–3 cm.