Breathe Easy, Live Safely! 🏡 85-decibel alarm alerts you to danger instantly. Battery backup ensures continuous monitoring. Single test/silence button for easy operation. Advanced electrochemical sensor for precise CO detection. 7-year warranty with end-of-life signal chirp. 85dB alarm Battery backup Plug-in convenience The First Alert CO605 Plug-In Carbon Monoxide Detector is a reliable safety device designed to protect your family from the dangers of carbon monoxide. With its advanced electrochemical sensor, battery backup, and user-friendly features, this detector ensures continuous monitoring and peace of mind, even during power outages. Its compact design fits any standard outlet, making it an essential addition to every home.