... ( 1000-2000-3000 VA) Pure Sinewave Output UPS Pure Sinewave Output for any critical load User ... discharge protection, replace battery indicatorDISPLAY LEDUtility Normal, Back up, UPS Fault and Battery ConditionLCDLoad Level, Battery Level, Bypass, AVR ... , Battery Low-Replace-Fault,UPS Fault, OverloadAlarmsLine Failure, Battery Low, Overload and FaultCOMMUNICATION Interface ...