First Alert SM210M Sealed 10-Year-Battery Micro Smoke Alarm, 1046750

Micro design smoke alarm is equipped with the same protection as a regular-sized detector; provides early warning to help you and your loved ones safely escape 10-year sealed battery eliminates battery replacements and low battery chirps for the life of the detector; end-of-life warning lets you know when its time to replace the alarm Precision Detection advanced-sensing technology reduces nuisance alarms and detects smoke from synthetic materials which burn hotter and faster, leaving you less time to safely evacuate Test/silence button for efficient testing to ensure the detector is working properly Alarm sound level: 85 dB at 10 ft. Easy to mount on wall or ceiling Includes mounting bracket and installation screws