Properly installed and maintained, residential smoke alarms are one of the best and least expensive ways to provide an early warning when a fire begins. Smoke alarms save lives, prevent injuries and minimize property damage by alerting residents early to a fire hazard. Kidde battery powered smoke alarms offer an inexpensive and easy way to protect homes that aren’t pre-wired with an interconnected system. The battery power continues to work during a power outage if they have been replaced regularly. Battery powered alarms can be installed easily and all models include a test button, power indicator light, battery locking, and low battery warning indicator.