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FIRST ALERT

Smoke and Carbon Monoxide Alarm

Mfg.#
1046743
Sku#
3509643
  • First Alert's precision detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
  • 10 year sealed battery eliminates battery replacements and low battery chirps for the life of the alarm
  • Slim profile design is half the depth of a standard alarm

* Estimated stock levels as of Thu, May 7, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

Install the First Alert SM210 10 year sealed battery smoke alarm and CO400 battery-operated carbon monoxide alarm safety value pack for protection against fire and carbon monoxide (CO). The SM210 smoke alarm features First Alert's precision detection advanced sensing technology and meets new industry standards. While the CO400 carbon monoxide alarm easily installs and provides reliable CO protection.

Specifications

General

Battery Battery (10 year - included)
Sensor Type Electrochemical Photoelectric
Type Smoke Alarm

Dimensions

Diameter 5.13 in
Height 1 in

Manufacturing Details
The following information is subject to change without notice

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