The Aico Ei3018 Carbon Monoxide Detector Alarm is a reliable and essential home security device that operates on a hardwired power source, ensuring constant protection against carbon monoxide leaks. With a sleek white design, this wired detector is compatible with Wi-Fi for added convenience. Perfect for use alongside open fires or stoves, this alarm provides peace of mind and safety for you and your family. Powered by one battery, this model is a crucial component in any home's smoke and gas detection system. box is a bit tatty but contents are brand new unopened