“Is there an audible alarm if the power to the back up system is lost. I plan to hook this up to my Cpap machine.”

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• There is an alarm, but you can turn it off or disable it. from the manual: Alarm setting: The audible alarm can be turned OFF or ON by quickly pressing the POWER button twice. The default setting is for the Alarm On. To turn the Alarm Off, quickly press the power button twice. You will hear two short beeps when the Alarm is turned Off. To turn the Alarm back ON, quickly press the power button twice. You will hear a single short beep when the Alarm is turned On.

  Answered by Richard 6 years ago

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• Yes there's an alarm that goes off if you lose power and the battery is being used.

  Answered by Olea 6 years ago

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• Yes, it beeps every couple of seconds until its backup battery is dead or the power comes on, whichever is first.

  Answered by ChosenBC 6 years ago

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• Yes it does

  Answered by Reycor 6 years ago

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