JFA3100 5 Bit LED Digital Display Controller Single Phase Voltmeter with Alarm Function

JFA3100 5-bit LED Digital Display Controller Single Phase Voltmeter with Alarm Function 1. production description: JFA3100 series single phase voltmeter is a new intelligent meter which can programmable, It adopts large scale integrated circuit. Uses digital sampling technology to real-time measuring and control for voltage, current, active power, reactive power, power factor, phase value, frequency, active power, reactive power and apparent power. and remote transfer the