Carbon Monoxide Detectors Fire Safety, Kidde, Safety & Security, Tools & Home Improvement Kidde KN-COSM-IBA Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup and Voice Warning, Interconnectable CustomerPackageType: Frustration-Free Packaging Model: KN-COSM-IBA Review by CheatingMutant June 23, 2018 No Comments