Features: (1) Display Function: Speed display, power-assisted gear display, power indicator, fault prompt, total mileage, single trip mileage, headlight status, 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) Wiring Harness: Red (P+) – meter power supply; Blue (VCC) – electric lock wire; Black (GND) – ground wire; Green (RX) – meter data input; Yellow (TX) – meter data output. (4) Meter Setting Function: Press and hold the up/down buttons to enter settings mode. P01: Backlight brightness (Level 1 = dimmest, Level 3 = brightest). P02: Distance unit (0 = km, 1 = mile). P03: Voltage setting (24V / 36V / 48V). P04: Sleep timer (0 = disabled; 1–60 = minutes before auto-sleep). P05: Power-assist levels (1–9). P06: Wheel diameter (unit: inch, precision: 0.1). P07: Number of speed sensor magnets (1–100). P08: Speed limit (% of maximum speed; 0–100%). P09: Start mode (0 = zero-start; 1 = non-zero start). P10: Drive mode (0 = pedal-assist only; 1 = throttle-only; 2 = both modes active). P11: Assist sensitivity (1–24). P12: Assist start intensity (0–5). P13: Magnet type for assist sensor (5 or 8 = single Hall sensor; 12 = dual Hall sensor). P14: Reserved function. P15: Reserved function. P16: Odometer reset (press and hold up button for 5 seconds). Special Features: Designed for e-bikes. Mounting Location: Handlebar. Color: Black. Material: Plastic. Package Includes: 1 x Display Unit Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.