Kidde Nighthawk™ AC Plug-in Operated Carbon Monoxide Alarm with Digital Display KN-COPP-3 Brand_Culligan They operate efficiently even when

They operate efficiently even when subjected to temperature extremes

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Kidde Nighthawk™ AC Plug-in Operated Carbon Monoxide Alarm with Digital Display KN-COPP-3 Brand_Culligan They operate efficiently even whenThe Kidde KN COPP 3 AC powered, plug in carbon monoxide alarm utilizes sophisticated electronic components and unmatched sensor technology to protect you and your family from the dangers of CO. The KN COPP 3 includes a 9V battery backup that provides continuous monitoring of CO levels, even during power outages, when AC only units are not providing protection. The KN COPP 3 will detect and store measured data of concentrated CO levels as low as 11 and