... future expansionHighest reliability and maximum performance for power sharing and redundancyEquipped with Maintenance Bypass Switch ... SwitchYesLED indicatorsStatusLoad level/Battery level, Battery , Utility power, Inverter, Bypass, Overload, FaultAudible alarmBypassAlarm beeps every ... two for every secondFaultAlarm beeps continuouslyAcoustic noiseAt 1 meter distance£ 55 dBA£ 60 dBACommunications DB- ...