With USB Port Display Function: Speed display, power-assisted gear display, power indicator, fault prompt, total mileage, single mileage, headlights, and single driving time display. 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. 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 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: Sleep time: 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 speed 100% P09: Zero start, non-zero start setting, 0: zero start; 1: non-zero start P10: Drive mode setting 0: Power-assisted drive (the handle is invalid) 1: Electric drive (by turning the handle to drive, the power gear is invalid at this time) 2: Power-assisted drive and electric drive coexist at the same time P11: Assist sensitivity setting range: 1–24 P12: Assist start intensity setting range: 0–5 P13: Power-assisted magnet type setting Three types: 5, 8, and 12 magnets; 5 and 8 are single Hall power-assisted sensors Setting 12 is used for dual Hall assist sensors P14: This function is not available yet P15: This function is not available yet P16: ODO reset setting, long press the up button for 5 seconds to reset ODO Package Includes: 1 x SW900 Display Colour