About this item

• SAME AS CO400A ASIN: B004Y75ZS2
• Battery operated, 9V battery included
• Mute button, mutes unnecessary alarms. Also tests alarm function with same button
• Low battery Signal mute, quiets low battery Signal for up to 8 hours
• Electrochemical sensor, most accurate technology available for detecting carbon monoxide* *compared to other common sensing technologies
• End of life timer, alarm chirps when it is time to replace it
• Care: Vacuum the CO Alarm cover once a month, using the soft brush attachment. Never use water, cleaners, or solvents, since these may damage the unit. Test the CO Alarm again after vacuuming.