Smoke Detector, 10 Year Photoelectric Sensor Fire Alarm, Low Battery Warning, 6 Pack A37693

10 YEARS LIFE TIME: The smoke alarm can be 10 years life time and has 10 years life time non-repalced battery. You won't worry about replacing the battery any more. And it can save energy and protect environment. PHOTOELECTRIC TECHNOLOGY: The smoke alarm uses a photoelectric sensor to ensure that fire smoke can be detected in advance, giving family more time to escape. Besides, the photoelectric sensor is purer than the ion sensor, and avoids the radiation of the ion sensor. FAULT SIGNAL ALARM: The photoelectric smoke alarm is very easily tested only by pressed the button more than 5 seconds, the low battery will have a signal alarm which will recall you to change a new battery. GOOD QUALITY: The smoke detector has passed UL certification, its quality is guaranteed. The smoke alarm don't contain any radioactive material and won't cause harm to human's body HOME PROTECTION: When the smoke detector is working, it will cut the risk of dying in a home fire by 50%, and that's important because a home fire starts every 83 seconds! The faster you know about a fire, the faster you can escape from the fire.