... DC Fuse, Fan, redundant power supply; temperature sensor, EPO (Emergency Power Off), audible alarmsSoftware ProtectionsDischarging batteries, Battery charger working, Inverter ... output voltage, DC fuse open, %v power supply fail, 13.5 v power supply fail, inverter overvoltage, 200% overload on ... dB @ 1,5 m.DimensionDimensionAsk for informationWeight (without batteries) uninterruptible power supply