Firex Plug-in Carbon Monoxide Detector, 9-Volt Battery Backup and Digital Display, CO Detector
$42.97
Pay $17.97 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card- Carbon monoxide alarm plugs directly into wall outlet
- 9V battery backup for protection even during power outages
- Digital display updates CO level in PPM every 15 seconds
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