OEM Manufacture in China; Obtained CE and ISO9001; High quality and favorable price JYS-2SY Export Type Multi-Function Power InstrumentSize : TypeJY-9S4JY-9S4-YInput,measurement,displayNetwork3 phase 3 wire,3 phase 4 wireVoltageRated valueAC100V,200V,380V(customer choice)overloadContinue:1.2times Instant:3times/2sConsumptionBelow 0.5VA(phase)ImpedenceAbove 4KΩAccuracyPNS measure,0.5% ...