Model: SW900Voltage type: 24~48VApplicable motor: 250-350WInstrument setting function: Long press the up and down buttons of the instrument to enter the instrument 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: : 0, no sleep; other numbers are , range: 1-60; unit minute.P05: Assist gear 1-9P06: Wheel diameter: unit, inch; precision: 0.1.P07: Number of speed measuring 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 (drive through the handlebar, at this time the assist gear is invalid). 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 There are three types of 5, 8, and 12 magnets, of which 5 and 8 are single-Hall power-assisted sensors. Setting 12 is for the use of dual Hall power-assisted sensors.P14: No such function temporarily.P15: No such function temporarily.P16: ODO reset setting Long press the up button for 5 seconds ODO resetColour: Black+SilverMaterial: composite materialPackage Contents:1 x controller1 x display meter1 x Connecting lineOnly 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.