Plug-in carbon monoxide alarm with battery backup meets most state and local codes for carbon monoxide alarms.

• Electrochemical Carbon Monoxide Sensor - the most accurate sensor available as compared to other sensing technologies
• Single Button Test/Silence
• 9V Battery Backup
• Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
• End of Life Signal provides audible notification alarms needs to be replaced