First Alert Plug-In Explosive Gas and Carbon Monoxide Alarm with 9-Volt Battery Backup

The First Alert Plug-In Explosive Gas and Carbon Monoxide Alarm provides reliable protection by accurately sensing three major household hazards: carbon monoxide, propane gas, and natural or methane gas. Designed to plug directly into any standard AC wall outlet without additional mounting hardware, this versatile detector delivers continuous monitoring to keep your home and family safe. Equipped with a backlit digital display, this alarm allows for easy viewing of current and peak danger levels. A battery backup ensures uninterrupted operation during power outages, while the convenient front-access door allows for quick battery replacements without unplugging the unit.