Type: DisplayRated voltage: 24VRated power: 250WUnder voltage: 21VOver current: 16AP00: 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: ;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 speed;P07: Zero ,non-zero setting,0: zero ; 1: non-zero ;P08: Soft ,hard setting,0: hard ,1: soft ;P09: Automatic ,0: cancel function,1: auto- 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 thecolour: blackMaterial: plasticSize: Diameter: 46.6mmLength: 88mmPackage Contents:1 * controller1 * round meter1 * electronic brakeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.