On NYE we were in bed and heard the fire alarm beep once, but we were talking and didn't recognize the sound. When it happened again, we knew exactly what it was and jumped out of bed. I thought it was due to blowing out all the candles in the house at once and then heading to bed. However, last night after going to bed I was awakened by this beep again. I got up and checked the air for the smell of smoke, and looked around. This is getting me concerned and I'm not sure what my next step is. I just purchased this home recently and am not sure if the smoke alarm is electric or battery operated.
Can someone tell me how I would know if the battery is running low? Or what I should be looking for?