Are you in search of a Carbon monoxide detector for the deaf and hard hearing? You have come to the right place. Carbon monoxide (CO) is a colorless and odorless gas that is not detectable . A properly functioning carbon monoxide detector monitors your home and alerts you with flashing lights and bed shaker when CO gas levels reach dangerous levels. For more information and expert advice, call us at 1-866-889-4872. See more: https://www.hearworldusa.com/alerting-notification-systems/carbon-monoxide-systems/