First Alert 1039734 Plug-in Carbon Monoxide Alarm with Battery Backup

• Model number CO605;• Alerts to dangerous carbon monoxide levels;• Most accurate electrochemical carbon monoxide sensor technology;• Battery backup allows for continuous monitoring during power outages;• Loud 85dB alarm sounds when carbon monoxide levels are elevated;• Single test/silence button for simple operation;• 7-year limited warranty;• Includes 9V battery;