First Alert Carbon Monoxide Alarm with 10-Year Battery and Digital Temperature Display

First Alert Carbon Monoxide Alarm with 10-Year Battery and Digital Temperature Display

The First Alert Carbon Monoxide Alarm with 10-Year Battery and Digital Temperature Display detects dangerous carbon monoxide for up to 10 years. This carbon monoxide detector uses an electrochemical carbon monoxide sensor. A built-in 10-year lithium battery means you don’t need to worry about changing batteries during the lifetime of the alarm. This stylish CO monitor is designed to sit on top of a dresser or tabletop, and it has a backlit digital display that shows temperature and CO concentration.