Kidde - The KN-COB-DP2 AC/DC carbon monoxide alarm plugs diretly into a home's standard wall outlet, making installation quick and easy. The 2-AA battery backup provides protection even during power outages when many CO incidences occur. The Kidde AC/DC carbon monoxide alarm has a 10-year limited warranty.
Warning: this product contains a chemical known to the State of California to cause cancer. P65Warnings.ca.gov