Review on 🔋 Display-based Battery Operated Smoke CO Alarm: Combination Smoke and Carbon Monoxide Detector by Ernest Etienne

I wish I had read more reviews before buying. When I turned it on the timer started counting down and then it beeped and turned off so I assumed I was doing something wrong and postponed reading the instructions because I couldn't find where I put the leaflet. When I finally found it, I realized I hadn't done anything wrong, it was just defective, and that happened to others. Of course I was out of the returns window by then, so I basically threw my money in the trash and had to go to home storage and buy one. Not satisfied at all, I do NOT recommend this product.