Carbon Monoxide is considered the number one cause of poisoning deaths in the United States. Safeguard your home or place of business from this subtle and too often lethal threat with a First Alert or USI Carbon Monoxide Alarm. Both First Alert and USI feature Combination Smoke and Carbon Monoxide Alarms that serve the dual purpose of protecting you from smoke and carbon monoxide. Photoelectric Smoke and CO Combo Alarms are a sleeker and just as efficient option for those concerned about space. Plug-in and battery operated alarms and detectors are also available and further promote versatility. Regardless of your selection, it's imperative that you secure and protect your home from this silent killer. Great Brands Outlet along with First Alert and USI have everything you need to prevent a potential disaster.