First Alert carbon monoxide detector recall — model CO615

What this recall means for you

First Alert is recalling approximately 124,000 CO615 plug-in carbon monoxide detectors sold across the United States due to a sensor malfunction that causes the device to fail to detect dangerous levels of carbon monoxide gas in the home. Carbon monoxide is an invisible, odorless gas that can be fatal within minutes of exposure, making a functioning detector critical for household safety. The affected units have a manufacturing defect in the electrochemical sensor that reduces sensitivity over time, potentially allowing dangerous CO levels to go undetected. This is particularly hazardous in homes with gas appliances, fireplaces, or attached garages where CO accumulation is most likely. Consumers with affected units reported the alarm failing to sound even when CO levels reached potentially lethal concentrations in independent testing. The recall includes all CO615 units manufactured before January 2024 and consumers are urged to verify their model number on the device display panel before assuming their home is protected.