... 5 pure sinewave 10KVA/15KVA/20KVA high frequency online ups True online double conversion ... technologyWide input voltage rangeZero transfer timeProtection against all types of power ... indicatorsStatusLoad level/Battery level, Battery , Utility power, Inverter, Bypass, Overload, FaultAudible alarmBypassAlarm beeps ... 570 x 717 UPS--LCD Online ups power system 6-20Kva