The STATUS Photoelectric Smoke Alarm by Ei Electronics is designed to provide easy and effective protection for your home. With a loud 85dB operating sound rating, this alarm will ensure you are alerted to any potential smoke dangers in your home. The alarm is easy to install and comes with a battery included, making it ready to use straight out of the box. The photoelectric smoke sensor and battery backup features provide added peace of mind, ensuring your home is safeguarded against any potential threats.