If there is a power failure does the alarm goes on even though it has battery backup?
1875951
As long as you have a good battery when you lose power it keeps on working it will start chirping when you lose power and the battery becomes weak I hope this helps you. Good luck
1842070
Only works when plugged in. There is a battery backup to keep the time during a power failure.
1001707
It stops making the alarm noise when the power returns.......I suggest turning the power off at the circut box to see for yourself.
1431803
There is an internal battery that allows the alarm to operate for some time. The siren in the base unit will sound, but not sirens plugged into wall sockets. I have mine plugged into a UPS, and know it will operate at least 24 hours. It worked fine for me during the last power outage.
2135712
It works when power is losted. I believe you can plug anything into it and the minute you lose power the alarm sounds. The question is does losing the light bulb cut the power??? I don't believe it would.
1490715
No, and this is horribly annoying. Even a brief outage resets the clocks, alarms and everything - you have to completely reprogram everything. If you have power issues at all I would advise against it.
1765105
It will not work if battery is dead but a low battery alarm sounds from the detector which is very annoying and you will know to charge your battery.
1003813
I think so, my power has not failed in sooooooooooooooo long I can't remember. I do remember it rang during the power failure but the Caller ID doesn't show up during the power failure and you can check any messages left on your phone. But you have program the phone before and after the power failure i.e date and year.
1551631
No, you simply plug it into the wall socket whenever you want it to tell you if the electrical power to that outlet (and associated connected circuits on the same breaker) goes off. When house power fails, the device sounds an alarm similar in loudness to a smoke alarm. I don't use mine during the summer, because I don't store lots of stuff in the freezer that matters. My own purpose is to let me know if the power goes off in winter while I am asleep. That way I can get up and run enough water to keep pipes from freezing or start up a back-up power and heating system. In summer, it won't matter, so I turn it off and unplug the alarm device until next winter. No, you simply plug it into the wall socket whenever you want it to tell you if the electrical power to that outlet (and associated connected circuits on the same breaker) goes off. When house power fails, the device sounds an alarm similar in loudness to a smoke alarm. I don't use mine during the summer, because I don't store lots of stuff in the freezer that matters. My own purpose is to let me know if the power goes off in winter while I am asleep. That way I can get up and run enough water to keep pipes from freezing or start up a back-up power and heating system. In summer, it won't... » Read More No, you simply plug it into the wall socket whenever you want it to tell you if the electrical power to that outlet (and associated connected circuits on the same breaker) goes off. When house power fails, the device sounds an alarm similar in loudness to a smoke alarm. I don't use mine during the summer, because I don't store lots of stuff in the freezer that matters. My own purpose is to let me know if the power goes off in winter while I am asleep. That way I can get up and run enough water to keep pipes from freezing or start up a back-up power and heating system. In summer, it won't matter, so I turn it off and unplug the alarm device until next winter. « Show Less
1440647
No battery backup built in but it uses the battery from the the alarm system. It has retained my zwave configurations after being disconnected. Most of the alarm programming is retained on your alarm system. IP address and such is usually DHCP.
1852955
This model is wired with a battery backup. You are better off with both power sources as you always have alarm protection.
1154544
There is no alarm. When you lose power to your home, the back up battery starts to work, thats it. You would only need an alarm if the back up didn't work and for that you can purchase a water alarm that senses an overflow of water. These alarms are very inexpensive and are sold separately. There is no problem with your pump, its the best pump you can buy.
108816
No, must be plugged in to operate....there is a "back-up"battery for the clock/alarm only.
1177201
It does *not* have a battery backup. Some settings survive a power outage, but some do not. For example, the setting to *not* go into power saving mode is not preserved; the "standby" mode - you have to reset the "standby" power level whenever the power comes back on - to disable that feature is you set the "standby" power level to 0 (zero) watts. The option to turn off the PIR motion detection feature does keep its setting when the power is restored. I don't know what happens to other settings that I do not change from their default values.
971238
Yes! However, if your phone power goes out, as well, I don't know the answer.
781725
If you have a power failure, it must be turned on again when re-powerig-up your computer. For a simple shut-down or restart, you needn't do a thing.
2166922
Not that I know of. Anything plugged in has a battery back up. I am in an area of frequent power failures. More than one a month and it has not been a problem with the security system. You could call GE, I think it is GE/Jasco for the security system. Sorry I don't have the number with me. They are very helpful.