Features: (1) Display function: Speed display, gear display, power display, fault prompt, total mileage, single mileage, headlight and single driving time. (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) Wiring harness: Red (P+) meter power cable; Blue (VCC) electric door lock cable; Black (GND) negative cable; Green (RX) meter data reception; Yellow (TX) meter data transmission. (4) Meter setting function: Long press the up and down buttons of the meter to access the meter settings. P01: Backlight brightness, level 1 is darkest, level 3 is brightest. P02: Mileage unit, 0: KM; 1: MIL. P03: Voltage level: 24V, 36V, 48V. P04: Sleep time: 0, no sleep; other numbers are sleep time, range: 1-60; unit minutes. P05: Assisted gear 1-9. P06: Wheel diameter: unit, inches; 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, 0: zero start; 1: non-zero start. P10: Driving mode setting 0: assisted driving (the handle is invalid). 1: Electric driving (by turning the handle to drive, assisted is invalid for now). 2: Assisted driving and electric driving exist at the same time. P11: Setting range for assistance sensitivity: 1-24. P12: Setting range for assistance start intensity: 0-5. P13: Setting of assistance magnet type. There are three types of 5, 8 and 12 magnets, of which 5 and 8 are single Hall assisted sensors. Setting 12 is used for dual Hall assisted sensors. P14: This function is not yet available. P15: This function is not yet available. P16: ODO reset, long press the up button for 5 seconds. ODO reset. Special features: For electric bicycle. Placement on the vehicle: Handlebar color: Black. Material: Plastic. Package contents: 1 x Screen. Only the above package content, other products are not included. Note: Light reflections and different screens may cause the color of the product in the picture to differ slightly from the actual item. The allowed measurement error is +/- 1-3 cm.