Product Description

First Alert CO400 Battery-Operated Carbon Monoxide Alarm, New in Box. This reliable safety device features an electrochemical CO sensor to provide accurate readings of carbon monoxide levels in your home. Key features include: - Battery-operated design for easy installation and protection during power outages. - One-touch test/silence button for simple operation. - End-of-life timer to notify you when it's time to replace the unit. - Easy-access battery door for quick changes. - Meets UL2034 standards for CO alarms. Condition: Brand new in original retail packaging. Packaging shows minor shelf wear but remains sealed. 9V battery included inside.