... overload protections11. Fun speed automatically changes as load varies12. Optional external battery pack13. EMI/RFI noise filter14. Shutdown and restart schedule Product ... bypass and vice versaZeroLED indicatorsStatusLoad level / Battery level, Battery , Utility Power, Inverter, Bypass, Overload, FaultAudible AlarmBypass, On battery mode, Battery low, Overload, FaultCommunicationsRS-232 Serial ...