First Alert 2-Pack Battery-operated Carbon Monoxide Detector in the Carbon Monoxide Detectors department at

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First Alert 2 Pack of Carbon Monoxide Alarms ~Battery Operated~ Model C0400

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Generic FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, 2-Pack, CO400

First Alert Carbon Monoxide Alarm 2 Pack Plug-In with Duracell 9V Batteries Included NEW, open box. Item was purchased but didn’t need to use it.

First Alert Carbon Monoxide Alarm 2 Pack Plug-In 9V Batteries Included NEW open

1) First Alert Hardwired Replacement Smoke and Carbon Monoxide Alarms, 2 Pack, Includes Quick Connect Plugs