First Alert Wall Mounted Carbon Monoxide Detector

Features

• Carbon monoxide alarm
• Can be interconnected with up to 11 additional smoke or carbon monoxide alarms
• Ideal for bedroom, hall, or basement
• Intelligent sensor reduces nuisance alarms
• Tin oxide sensor permanently stores highest c/o reading
• Automatically performs internal test
• Interconnect up to 18 units
• Installs in minutes