First Alert Wireless Interconnect Talking Battery Operated Smoke & Carbon Monoxide Alarm

First Alert Wireless Interconnect Talking Battery Operated Smoke & CO Alarms utilize an Electrochemical Sensor that allows for optimal efficiency in detecting carbon monoxide. The realization of Photoelectric Smoke Sensing Technology will effectively reduce the number of nuisance alarms triggered by cooking smoke and shower steam. This alarm comes equipped with a Mute Button that serves the dual purpose of quickly silencing your alarm as well as testing its function. The combination of an End of Life Timer and an increased emphasis on the unit's 85db sound output establishes peace of mind, while the inclusion of Dual Smoke and Carbon Monoxide Sensing all but guarantees the safest of experiences. This alarm carries a 7 year limited warranty and complies with UL217 and UL2034 Standards.