The Kidde 900-0076-01 AC Powered Plug-In Carbon Monoxide Alarm offers advanced protection for you and your family against carbon monoxide (CO) hazards. This device features top-notch sensor technology and electronic components designed to detect CO levels accurately. With a 9V battery backup, it ensures continuous monitoring of CO, even during power outages when other units may fail. The alarm is capable of measuring CO levels as low as 11 parts per million (PPM) and can record levels up to 999 PPM, thanks to its peak level memory display that keeps track of the highest recorded CO concentration. It provides versatile installation options, allowing you to use it as a direct plug-in, with a six-foot power cord, or on a tabletop for your convenience. This alarm brings peace of mind with reliable performance and easy setup, making it an essential addition to any home to ensure safety from the dangers of carbon monoxide exposure.