The Kidde 900-0282 AC/DC Carbon Monoxide Alarm is a plug-in unit equipped with a ten-year sealed backup battery and a voice alert feature. This alarm is designed to provide clear warnings of dangerous carbon monoxide levels, ensuring your family's safety. The compact design fits easily into any outlet, making installation simple. The voice alert feature enhances awareness, providing specific warnings in case of CO detection. This unit meets safety standards, making it a trusted choice for households prioritizing safety against carbon monoxide exposure.