First Alert SMCO210 Sealed 10-Year Battery Combo Smoke and CO Alarm with Slim Profile Design Rayovac WireWarning® Alert indicates the presence

WireWarning® Alert indicates the presence of unshielded hot electrical wiring

Tylo Design

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First Alert SMCO210 Sealed 10-Year Battery Combo Smoke and CO Alarm with Slim Profile Design Rayovac WireWarning® Alert indicates the presenceThe First Alert SMCO210 Sealed 10 Year Battery Combo Smoke and CO Alarm with Slim Profile Design uses First Alert's Precision Detection advanced sensing technology and meets new industry standards. This 2 in 1 alarm provides convenient protection against both fire and carbon monoxide (CO). The alarm is also equipped with a 10 year sealed battery to eliminate the need for battery replacements and low battery chirps. First Alert's Precision Detection