Kidde Smoke and Carbon Monoxide Detector, 10-Year Battery Powered with Voice Alarm, (2-Pack)

The Kidde P3010CU is a 10-year, sealed battery, smoke and carbon monoxide alarm with a voice warning system that features photoelectric and electrochemical sensing technology with Smart Hush feature. This combination alarm combines the detection capabilities of a photoelectric sensor with that of an electrochemical sensor, which is used to detect CO. When either sensor notices a potential hazard, it will communicate with the other. Depending on what is detected, the alarm will adjust its smoke sensitivity in order to better discriminate between a real hazard and a false 1. This constant communication enhances the alarm's overall performance and significantly reduces the potential for a nuisance alarm. The voice warning system announces Fire, or Warning, Carbon Monoxide to help eliminate any confusion and clearly warn you and your family of a smoke or carbon monoxide danger. The sealed in lithium battery will power the unit for the entirety of its 10-year life, eliminating the need for battery replacement a...