The Kidde KN-COSM-BA is an easy to install battery operated combination smoke and carbon monoxide alarm that is suitable for all living areas and has a 10-year life and a 5-year limited warranty. This alarm uses ionization sensing technology. Leading authorities recommend that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fires that can occur within the home. Ionization sensing alarms may detect invisible fire particles (associated with fast flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible fire particles (associated with slow smoldering fires) sooner than ionization alarms. The voice alarm eliminates any confusion and clearly warns you and your family of a smoke or carbon monoxide danger， or if your battery is in need of replacement.

Product Features:

• Voice Alarm –Announces the hazard type detected thereby helping to speed up the correct reaction to the hazard detected. Alarm announces “Fire!” when a smoke or fire hazard is detected and announces “Warning Carbon Monoxide” when a CO hazard is detected.
• LEDs – Flashing green for normal operation and flashing red for alarm condition.
• Test/Reset Button –Tests the unit for proper operation. Resets the Carbon Monoxide alarm.