Beeping noise

[Paulgooner]

Working in my garage today, I kept hearing a beeping sound coming from my chim. It sounded like the horn was very briefly being pressed. It started to drive me nuts. It wasn't on a regular pattern. I have suffered in the past from the battery going flat over a couple of weeks of non use in the winter, and I'm beginning to think that it could be this sound thats doing it. Any one else had this.
Thanks in advance

[That Daddy]

I think it may be a flat battery thats causing your problem,the alarm siren malfunctions when the battery is running down,does it start now?

[Paulgooner]

It starts fine, but I'll check the voltage on the battery and see what happens