Nrthtri smt PZEM-002 20A AC 80-260V Digital LCD Current Voltmeter Voltage Energy Meter KWH Panel Tester Measuring
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Smaller Size and Energy Efficient: It has been combined the advantages of traditional wireless modules, which makes it smaller and consume less energy. 1. Electrical parameter measurement function (voltage, current, active power, energy) 2. Running time function (records the load accumulated operating time). 3. Overload alarm function (over power alarm threshold backlight flashing to alarm). 4. Power alarm threshold preset function (can set power alarm threshold).