It worked for a year. In the first few days, I tried it with a lighter and it worked perfectly. Since then, I don't know if it was working because I just tried it again and it doesn't work with lighters or with a gas bottle, which is basically why I bought it

Basically useless.. first day of operation with a gas stove, after an hour it started to rise. I close the stove and open windows. Second day, without the stove operating, it starts to make noise, I take the stove out to the balcony and open it. Third day, I observe it without the stove in the room, it starts to rise gradually. It definitely remains stable with open windows but that is not its intended use.. the space is large and airy. It simply ended up in the drawer.

The product is great, I have tested it and it works perfectly fine. The siren might be louder than an alarm, so there is no chance you won't hear it