Key-Disp KD21C User Manual page 24

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Attached list 4：symbol definition
Symbol
Trip distance clearance
Wheel diameter
Controller over-current cut
Sensitivity of PAS
Power delayed time
Throttle power assist walk
Throttle-changing
Recover default
21
Definition
Backlight
Unit
Voltage
Speed limit
Backward
Forward
Speed sensor
Button push
Slowly start up
Password
Yes
No