Kidde Fire Sentry Smoke Detector, 9V Battery Powered Smoke Alarm, 4 Inch Compact Design
- At only 4-inches in diameter, this is one of the smallest smoke detectors you can install in your home, RV, and mobile home.
- Operating on a 9-volt alkaline battery, the Kidde smoke alarm provides reliable detection of smoke or fire, even during power outages.
- Installation is easy, no wiring required. The alarm can be installed on the surface of any wall or ceiling.
- Uses ionization sensing technology to detect smoke from flaming fires and emits a loud 85 decibel alarm when fire particles are detected.
- Test button tests unit's electronic circuitry horn and battery function.
- Meets the UL requirements and widely-accepted safety standards.