A loud, BEEP! and then a disembodied female voice said, "Low Battery."
This scared me as I sat reading in the absolute quiet before bed last night. It also scared the dogs, it may as well have been thunder. I looked at the clock and it was 10:20 pm.
BEEP! "Low Battery"
Sounded just a couple of minutes later.
I knew this would be one sleepless night. I called DH to let him know to bring batteries or he wasn't going to sleep after his shift either. Shutting my door helped a little, but through the night the alarm and voice continued. Around 3:00 am, it slowed down and occasionally was just the BEEP! and the disembodied voice was quieter, creepier. There was no sleeping at all.
DH arrived home at 7:30 am and took it off the wall to change the batteries. I guess when they say to change the batteries in your smoke detector when you 'spring forward' they are confident about how long the batteries will last. Have you changed your batteries?