... TimeStandard static bypass, Completely Uninterrupted transfer between Mains - Battery / Battery - MainsBypass Voltage Tolerance176 – 261 VAC, 1 Phase ... Input Voltage Exist, Output Voltage Exist, Bypass Active, Battery Mode, Battery Capacity (%), Inverter in Service, FaultIndicators (LED)Mains ... it can be switched off by audible alarm button.Battery Mode, Battery Low, UPS fault, Overload, Short Circuit, ...