FireAngel Digital Carbon Monoxide Detector with 10-Year Sealed for Life Battery - FA3322 Humidity, Temperature and CO Alarm - Portable Carbon Monoxide Alarms for Home and Travel - CO Detector Monitor

there are carbon many monoxide detector out there,What made this outstanding is the early alert for extended exposure to lighter CO,which may lead to unaware damage to health.Second,is the tempetature and humidity display which a bonus feature othet than solo CO detect other brands provided,at this higher price tag一,it is worth to pay.Display is easy to read with bavkground light,do not go with non branded CO detector,Fire Angel is a priof of quality,you life matter,do buy with less confidence product at lower price tag,your life is most precious not money can buy,now in discount price grap one！ Now

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Great little device, smart looking, easy to follow instructions, nice and loud should it ever activate, well worth the money for peace of mind! Especially with the 10 year battery

Seems to be doing the job! Display is nice and easy to read. It’s an upgraded model of the last one that lasted a good 20 years

Looks good and seems to work OK. The CO level went from 2 ppm to 3 ppm when I moved it from the bedroom to the kitchen, test alarm very good and loud. I guess only a future alarm will reveal if it is fit for purpose.