Install smoke alarm, Carbon Monoxide and Smoke Alarm Combination Installation video Kidde hardwire

Kidde KN-COSM-IB Hardwire Combination Carbon Monoxide and Smoke Alarm with Battery Backup and Voice Warning, Interconnectable
21006377
Talking alarm announces the hazard type detected, helping to speed up reaction time
Combined carbon monoxide and smoke alarm, a single unit can be installed where previously two were needed
Battery safeguard ensures the unit cannot be accidentally mounted without batteries
Test-reset button tests alarm circuitry and triggers the voice announcement
Meets safety standards set by Underwriters Laboratories (UL) and interconnects with other KN-COSM-IB models
120V AC, All Kidde brand hard wired smoke alarms are interconnectable with the KN-COSM-IB
Available at Grainger, Fastenal, Target, Wal-Mart, and other Kidde retailers