Bests & Worsts Reviews from Amazon

I've had these since October 2015 and had no reason to leave a review until now. My wood stove acted up because of a strong wind and filled the house with such a thick smoke it woke me and my son up. Thank goodness we woke up. I purchased 6 of these to protect my house and not a single one went off. These are junk and could have killed my family. We have had light smoke in the house from time to time but nothing like tonight. Will be contacting the company. This is ridiculous