- 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