20SDR Battery Operated Smoke Alarm

This alarm offers cutting edge technology sending fast alerts to give your family more time to get out safely. It features 3 alarm warnings in multi-color LEDs for fire, low battery and alarm memory. Easy to install with included twist-and-click mounting bracket. Self-testing alarms for added assurance. The internal components ensure alarm is always operating as expected. Runs on 2 AA batteries (included) to provide power during power outages. This alarm beeps to remind you it is time to replace it 10 years after it is powered.