... Inner Tempreture of UPS>80Short CircuitProtectionAutomatically Cut Off the Output & Continuous BeepingUPS AbnormalAutomatically Transfer to BypassTransferTimeAC to ... 4msTotal Efficiency≥90%IndicatorsLCDVFD/LCD Indicator StatusInput/Output Voltage,Frequency,Output Power,Battery,Utility,Inverter,Overload,Fault,BypassCommunication PortRs232 ... 85.00 Online & Sine Wave Uninterruptible Power Supply(UPS)