... technology, self-detection UPS, online UPS rack mount type, wide input range, dual conversion, IGBT technology, ... THD5.Self-detection when UPS start-up6. Advanced battery management7.Cold start feature(DC power on)8. Automatically charging ... level, Battery , Utility Power, Inverter, Bypass, Overload, FaultAudible AlarmBypass, On battery mode, Battery low, Overload, FaultCommunicationsRS-232 Serial ...