The Kidde 900-CUAR-V Smoke & Carbon Monoxide Detector is a reliable home security device that provides protection from both smoke and carbon monoxide. With its voice alerts and photoelectric smoke sensor, you can rest assured that your home is safe even if you're not awake. This detector runs on both battery and hardwired power sources, ensuring continuous protection during power outages. Its sleek white design and compact size make it easy to install in any room, while the 85 dB operating sound rating ensures that you will be alerted in case of any emergencies.