IntroductionThank you for purchasing the Kidde Combination Smoke and Carbon Monoxide Alarm model # KN-COSM-I or # KN-COSM- IB. This alarm is suitable as a Single Station and/or Multiple Station (24 devices) alarm. This alarm has a five-year limited warranty. Please take a few minutes to thoroughly read this user’s guide, and save for future reference. Teach children how to respond to the alarms, and that they should never play with the unit. Your Kidde Smoke/CO Alarm was designed to detect both smoke and carbon monoxide from any source of combustion in a residential environment. It is not designed for use in a recreational vehicle (RV) or boat. If you have any questions about the operation or installation of your alarm, please call our toll free Consumer Hotline at 1-800-880-6788. The guide on Page 27 will help you determine the correct location of safety products that will help keep your home a safer place.