Review on 🔥 CO Gas Monitor Alarm Detector with LED Digital Display - UL 2034 Compliant, Battery Powered - Ideal for Home, Depot by Don Devine

I couldn't believe how small it was! I was expecting something bigger, like the size of a thermostat or a fire alarm, but it's nice and small. This involves drilling two small studs into the wall for easy hanging, or you can just use sticky tape as it's not heavy at all. This allows you to know the carbon dioxide levels, which is very important since we have a coal stove that often gets clogged. I love that extra quiet.