three phase voltmeter 1.CCC CE approved 2. ... high quality SCD914Z-7X4-3U 72*72 digital three phase voltmeterOutput Mode Option:X: Display instrument with no ... times instantaneous 2 times/30 secConsumption<1VA(each phase)Impedance>500kΩCurrentRated valueAC1A,5AOverloadConsistent 1.2 times ... input,output ,source,dasing>20mΩEnvironmentTemperatureOperation:-10—50°C Storage:-25—70°CHumidity≤85%RH,free of ...