TekeyTBox Smoke alarm fire certification smoke detector independent wireless residential

Alarm Battery-Powered Smoke Alarm — 2 packs with a pair of alarms that accurately tell you about dangerous areas in your room so you can take action quickly. These alarms are related to each other, so when an alarm starts to alarm, other alarms will also start to sound, the sound is 85 decibels, and the voice prompt is: "Alarm, please evacuate." When the alarm sounds, no one can continue to sleep. Each alarm has 11 programming options, all using better photoelectric smoke sensing technology to reduce the number of smoke alarms caused by cooking or showering. Includes 2 AA batteries and a 10 year warranty. Additional feature types: battery-powered, photoelectric alarm-type smoke available for home safety equipment, First Alert is the most recognized and trusted safety equipment brand in the United States. Detectors, fire extinguishers, safety boxes and other prepared products make family and entrepreneurs more secure. The First Alert is actively involved in community protection and is committed to long-term campaigns on fire prevention, carbon monoxide detection, and safety, supporting fire and other organizations. Wireless smoke alarm with photoelectric sensor. Sound source localization technology. Test / mute button. 85 decibel audible alarm, warning light and low battery prompt. Support 10 year warranty. Includes AA batteries.