High-performance network analyzer UMG 604 E-PRO 24V (UL) - Power quality analyser digital 5216222 – Janitza – 4251861102310: Indication=Digital, Number of voltage input channels=4, Number of current input channels=4, Current measurement=Direct current measuring, Top arbour measurement=yes, Power factor=yes, Effective power=yes, Reactive power=yes, Apparent power=yes, Step angle (cos phi)=yes, Power/work=yes, Interface=yes, Measured value memory=yes, Current supply=Mains power supply