
Install reliable fire and carbon monoxide (CO) protection with this First Alert® Value Safety 2 Pack. It includes the SMI100 battery-operated smoke alarm and the CO400 battery-operated carbon monoxide alarm. The SMI100 Smoke Alarm features the First Alert® Precision Detection advanced-sensing technology that meets the latest industry standards to reduce cooking nuisance alarms, detect smoke from synthetic materials, and provide early warning in the event of a home fire emergency. The CO400 carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor - the most accurate sensor available - to detect carbon monoxide. Both are battery operated, easy to install, have convenient test/silence buttons, front-access battery doors for easy battery replacement, and will work in the event of a power outage.
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Install reliable fire and carbon monoxide (CO) protection with this First Alert® Value Safety 2 Pack. It includes the SMI100 battery-operated smoke alarm and the CO400 battery-operated carbon monoxide alarm. The SMI100 Smoke Alarm features the First Alert® Precision Detection advanced-sensing technology that meets the latest industry standards to reduce cooking nuisance alarms, detect smoke from synthetic materials, and provide early warning in the event of a home fire emergency. The CO400 carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor - the most accurate sensor available - to detect carbon monoxide. Both are battery operated, easy to install, have convenient test/silence buttons, front-access battery doors for easy battery replacement, and will work in the event of a power outage.

The First Alert® SMICO100 Battery-Operated Combination Smoke and Carbon Monoxide Alarm provides protection against both threats in a single alarm. It is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This 2-in-1 smoke and carbon monoxide alarm provides reliable protection against both threats and is easy to install and maintain.
| Pros for First Alert - Standard Battery-Operated Smoke and CO Alarm 2 Pack Models SMI100 and CO400 - White | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Installation Ease, Connectivity, Overall Performance, Battery Life, Compatibility | There were no pros for this product— |
| Cons for First Alert - Standard Battery-Operated Smoke and CO Alarm 2 Pack Models SMI100 and CO400 - White | |||
| There were no cons for this product— | There were no cons for this product— | Features, Alarm Accuracy, Night Light, Size | There were no cons for this product— |