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Carbon Monoxide Detectors, Temperature / Humidity / Air Quality / Smoke / CO Gas Monitor All in One Alarm for Home, Office, Car, Camping

SKU: GW40.0007

Q
How does it work when the smoke come?
Answer Question
A
Our CO detector is NDIR working method: [CO ppm: 0-100, Green indicator light and smile emoji show]; [CO ppm: 100-200, Yellow indicator light and expressionless emoji show warning]; [CO ppm: 200-500, Red indicator light and sad emoji show with trill Alarm]."
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