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 and down buttons simultaneously to enter settings mode. P01: Backlight brightness — Level 1 (darkest) to Level 3 (brightest). P02: Distance unit — 0: km; 1: miles. P03: Voltage setting — 24V, 36V, or 48V. P04: Sleep timer — 0: disabled; 1–60: sleep delay in minutes. P05: Power assist levels — 1 to 9. P06: Wheel diameter — unit: inches; precision: 0.1 inch. P07: Number of speed sensor magnets — 1 to 100. P08: Speed limit — 0% to 100% of maximum motor speed. P09: Start mode — 0: zero-speed start; 1: non-zero-speed start. P10: Drive mode — 0: pedal-assist only (throttle disabled); 1: throttle-only drive (pedal-assist disabled); 2: both modes active. P11: Assist sensitivity — range: 1 to 24. P12: Assist start intensity — range: 0 to 5. P13: Magnet type for pedal-assist sensor — 5-magnet or 8-magnet (single Hall), or 12-magnet (dual Hall). P14: Reserved function. P15: Reserved function. P16: Odometer reset — press and hold the up button for 5 seconds. Special Features: Designed for e-bikes. Mounting Location: Handlebar. Color: Black. Material: Plastic. Package Contents: 1 x display unit. Note: Color appearance may vary slightly due to screen calibration and lighting conditions. Dimensional tolerance: ±1–3 cm.