The Consumer Product Safety Commission has issued a recall for several True Sense combination Smoke/CO alarms manufactured by Kidde. These devices may fail to alert occupants to the products of combustion. Please click on the following link for further information. https://www.prnewswire.com/news-releases/kidde-recalls-trusense-smoke-and-combination-smokecarbon-monoxide-alarms-due-to-risk-of-failure-to-alert-consumers-to-a-fire-301286154.html