PZEM-024V AC 30V 500V High Volt Meter Voltmeter Digital AC Voltage Indicator

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ขาย PZEM-024V AC 30V 500V High Volt Meter Voltmeter Digital AC Voltage Indicator PZEM-024V AC 30V 500V High Volt Meter Voltmeter Digital AC Voltage Indicato Product for sale PZEM-024V AC 30V 500V High Volt Meter Voltmeter Digital AC Voltage Indicator
1. Backlight control. The backlight can be turned on or off by short press the key.
2. Error adjustment
Step 1 long press the key (about 3 seconds) until the screen digit flashes, and then release the key.
Step 2 Digital flicker means entering error adjustment state, and the digit cycle flickers in sequence low digit position - middle digit position - high digit position - decimal point. The flicker represents the current adjustable digit, short press the key to adjust the value (Digital 0-9 cycle, decimal point shift)
Step 3 long press the key (about 3 seconds) after the adjustment, the screen display PASS and return to the normal display interface, means the adjustment is successful.