Title: Rubbish
Product review: We've had this thing for just over two months - it started chirping last week and all indications were that it needed a new battery. I changed the battery and it would not stop screeching. I removed and replaced the battery assuming it was not making a good connection and it seemed to be OK. After two days it started chirping again. I had already moved another detector next to it so I knew we weren't getting too much CO2 so its going back to HD tomorrow.
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