FIRST ALERT 1039871 Smoke and Carbon Monoxide Alarm, 85 dB, Alarm: Audible, Electrochemical, Photoelectric Sensor [SKU: ORG7771157]

Photoelectric sensor warns of smoldering fires, Single button test/silence to ensure your alarm is working properly, Electrochemical sensor monitors carbon monoxide levels, Sleek, low-profile design, Nuisance-free photoelectric technology reduces false alarms that result from cooking and shower steam, Talking alarm indicates location and nature of threat, Voice and location alert feature ensures residents are aware of room location where danger is detected, Powered by sealed 10 years lithium batteries to provide continuous protection for 10 years without battery replacement, Photoelectric smoke sensing technology for less nuisance alarms, Eliminates annoying low battery chirps in the middle of the night. [QTY/UOM: 1CD / 1CD]