King-Meter JUST TWO - Precautions

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Wire Connection of N3 Button and Just Two
Inthefollowingintroduction  isnamedas“MODE”,  isnamedas“UP”and  is
namedas“DOWN”.
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6. Precautions
Do not plug in and plug out display when it is working.
Avoid being hit
Don’t modify system parameters to avoid parameters disorder.
Send display to after sales instantly once find faulty