... technology,N+X redundancy 3. 3 years warranty 4.ISO9 DC to AC inverter Feature1.True online and dual conversion design Effectively ... softwareDetect all the information about UPS, including temp, capacity, load, voltage and so on.When AC fails or low battery, the ... .5 times per second,mute after 1 min;under voltage per 0.75sInverter abnormalRing;indicator light displayOthersDisplayLCD display indicates ...