The First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location is designed to notify you of trouble with both an 85-decibel siren and voice notification. The battery-operated unit can be installed easily, without wires or an electrician. The units communicate wirelessly with each other and sound the alarm together, providing an efficient and comprehensive warning solution for large areas or homes with multiple stories. The smoke detector features a photoelectric sensor designed to sense smoke but minimize the number of false alarms due to cooking smoke or shower steam.
2 Pack. Battery-operated smoke and carbon monoxide alarm can be installed easily
Connects multiple alarms together for wireless safety network
Voice alarm gives clear indication of where the problem is located
Features photoelectric smoke sensor and electrochemical CO sensor. One button silences a false alarm and tests the unit
NOTE:Kindly refer to the user manual provided as a PDF manual in the product description section