FIRST ALERT 1039839 Smoke and Carbon Monoxide Alarm, 85 dB, Electrochemical Sensor [SKU: ORG0704171]

Wireless interconnectivity, wirelessly connect up to 16 first alert wireless interconnect alarms in your home, End of life timer, alarm chirps when it is time to replace it, Talking alarm, actual voice speaks the type and location of danger in your home, when easily programmed, Dual smoke and co-sensing, ultimate protection from two deadly dangers, Photoelectric smoke sensing, optimal protection from smoldering fires, Eco-friendly, completely recyclable as an electronic device, Mute button silences unnecessary alarms immediately, same button also tests alarm's function, EZ access battery drawer, no need to remove alarm from ceiling to change battery, Low battery signal mute, quiets low battery signal for up to 8 hr, Electrochemical sensor, most accurate technology available for detecting carbon monoxide. [QTY/UOM: 1EA / 1EA]