Carbon monoxide (CO) alarm with 10-year battery and digital temperature display

The First Alert CO710 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 over the life of the alarm. This stylish CO monitor is designed to sit on a dresser or table and has a backlit digital display that shows temperature and CO concentration.