First Alert CO511B Wireless Interconnected Carbon Monoxide Alarm with Voice and Location

Has single test/silence button Two silence feature effectively aids to silence the low-battery chirp for up to 8 hours or temporarily silence an unwanted nuisance alarm The First Alert CO511B Wireless Interconnected Carbon Monoxide Alarm with Voice and Location detects elevated carbon monoxide levels and can work with compatible models to create a wireless alert system throughout your home. Designed for those who want a comprehensive detection system without hiring an electrician, this battery-operated carbon monoxide detector is an ideal solution. Wireless technology interconnects the detector with other compatible First Alert wireless-enabled alarms (sold separately) in your home to create a unified safety network. The alarms communicate with each other to alert you when there is a problem across the house, in a different room, or on a different floor. The advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, including faulty fuel-burning appliances