Power Analyser, UMG104 (UL), supply voltage: 95 .. 240V (45-65Hz) 135 .. 340V DC , measuring category: 300V CATIII , 4 voltage measuring inputs, 4 current measuring inputs , measuring range: L - N: 10 -300V L - L: 17 - 520V 45 - 65Hz , current transformer: ../1, ../5A , 2 digital inputs, 2 digital outputs , 1 temperature measuring input , additional memory: 4MB Flash , interfaces: RS232, RS485 , programming software 'GridVis Basic' download: , www.janitza.de/gridvis-download.html, included in delivery: Art.No.: 8910051, ESD , Art.No.: 5200008, RS485 terminating resistor 120 Ohm, Art.No.: 3303305 Installation instructions UMG 104