The First Alert CO1210CP1 Carbon Monoxide Alarm is a reliable and essential home security device that operates on battery power. With a sleek white design and a compact size, this alarm is easy to install and includes a battery backup for continuous protection. Featuring an electrochemical carbon monoxide sensor, this alarm provides accurate detection and emits an 85 dB operating sound rating to ensure you are alerted in case of emergency. Manufactured in 2018 by the trusted brand First Alert, this CO detector is a crucial addition to any home to safeguard against potential carbon monoxide leaks.