... current <2%Reflected wide band noise current<10%AC inputVoltage165-283VacFrequency45-65Hz(auto sensing)InverterOutput Voltage220Vac±2% ... (Optional)I/P & O/P Voltage, / O/P Frequency, Load, Battery Voltage, TemperatureDigitalI/P&O/P voltage, O/ ... P Frequency, battery, loadAlarmAlarmMains failure, battery low, overload, inverter faultMutemanualNoise ...