How to VIVI Ebike Display Meter (KD-21C) From KMPH to MPH ?
Display Meter (KD-21C) From KMPH to MPH
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There are three buttons on the KD21C meter, including the on/off/mode button("M"), up button("+") and down button("-").
Power On/Off
After long pressing the "M" button for 3 seconds, the indicator light of the meter will be on, and the electric bike will start normally. In the power-on state, press and hold the "M" button for 3 seconds to turn off the power of the electric bike.
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Display Interface
After the meter is turned on, the meter displays real-time speed (km/h) and total mileage (km) by default. Short press the "M" button continuously, the real-time speed (km/h), single mileage (km), riding time (h), maximum speed (km/h), average speed (km/h) and motor output power (w) information.
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KMPH to MPH Conversion
U stands for unit, 1 stands for MPH, and 2 stands for KMPH. Short press the "+"/"-" buttons to switch the speed and mileage units, and switch the speed unit from KMPH to MPH or MPH to KMPH;
Short press the "M" button to confirm and return to the single mileage reset setting state, long press the "M" button to confirm and exit the general setting state. The default unit for LCD meters is KMPH.
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There are three buttons on the KD21C meter, including the on/off/mode button("M"), up button("+") and down button("-").
Power On/Off
After long pressing the "M" button for 3 seconds, the indicator light of the meter will be on, and the electric bike will start normally. In the power-on state, press and hold the "M" button for 3 seconds to turn off the power of the electric bike.
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Display Interface
After the meter is turned on, the meter displays real-time speed (km/h) and total mileage (km) by default. Short press the "M" button continuously, the real-time speed (km/h), single mileage (km), riding time (h), maximum speed (km/h), average speed (km/h) and motor output power (w) information.

KMPH to MPH Conversion
U stands for unit, 1 stands for MPH, and 2 stands for KMPH. Short press the "+"/"-" buttons to switch the speed and mileage units, and switch the speed unit from KMPH to MPH or MPH to KMPH;
Short press the "M" button to confirm and return to the single mileage reset setting state, long press the "M" button to confirm and exit the general setting state. The default unit for LCD meters is KMPH.
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Updated on: 19/04/2023
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