Kidde Nighthawk Plug in Carbon Monoxide Detector Alarm

I had the Kidde NightHawk and paid good money for it. It is a solid product but remember: The detector has a BUILT-IN self destruct so to speak. Its ability to detect diminishes after a year or two (forgot). And that is why it will NOT operate and will give ERR alarm when connected. So yeah, Good product but only for the given time period.