UPS1200VA/720Watts,AVR, CPU control,SMT PCB, LCD display,Management software,4 battery back &2 surge protection, ... Audible AlarmBuzzerAC Unusual/Battery Low Voltage/Overload/Short Circuit/PCB Failed,Beep for 60Seconds Interface Port(s)InterfaceRS-232/USBControl SoftwareUPSlion2000Cold-start ...