Type: Display Rated voltage: 24V Rated power: 250W Under voltage: 21V Over current: 16A P00: Backlight brightness, level 1 is the darkest, level 3 is the brightest P01: Mileage unit, 0: KM, 1: MILE P02: Voltage level: 24V, 36V, default 24V P03: 0 - no sleep; other numbers are range: 1-60; unit: minute P04: Wheel diameter: unit is inch; accuracy: 0.1 P05: Number of speed magnets: Range: 1-100 P06: Speed limit: range 0-100%, 100 means unlimited speed P07: Zero start, non-zero start setting, 0: zero start, 1: non-zero start P08: Soft start, hard start setting, 0: hard start, 1: soft start P09: Automatic cruise, 0: cancel cruise function, 1: auto-cruise starts after 7 seconds of throttle P10: Password is used, 0: no password is required, 1: password is required P11: Password: 00-99 P12: ODO clear setting, press the button for 5 seconds to clear Color: black Material: plastic Size: Diameter: 46.6mm, Length: 88mm Package Contents: 1 x controller 1 x round meter 1 x electronic brake Only the above package content, other products are not included Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm