$21 off Kidde 10-Year Worry Free Smoke Alarm 3-Pack

Kidde battery operated smoke alarm Model # 21009663 is powered by sealed, long-life lithium batteries for ten years (the life of the alarm), meaning the alarm is always on. This Smoke Alarm is ideal for the living area. With a sealed, long-life Lithium Battery Smoke Alarm, you can enjoy peace of mind knowing your living area Smoke Alarm is always on; 24 hours per day, seven days a week for a decade.