... Hz(Battery Mode)Output WaveformTrue Sine WaveHarmonics Distortion<3% (Linear Load,Full Load)/<5%(Non-linear ... /LCD Indicator StatusInput/Output Voltage,Frequency,Output Power,Battery,Utility,Inverter,Overload,Fault,BypassCommunication PortRs232 ... etc.Software Function1.Anlysis of Power Status, 2.Timing Controlling, 3.Monitor UPS,4.Execute UPS ... 00 Online & Sine Wave Uninterruptible Power Supply(UPS)