Smoke & Carbon Monoxide Detector

Updated August 7, 2026

Retail value $60. New. Kidde 10-Year Battery Powered Smoke and Carbon Monoxide Detector with Alarm LED Warning Lights, 30CUD10 Brand Kidde Model 21031514 UPC 047871315147 Experience the next level of fire safety with the Kidde 10-Year Battery Smoke and Carbon Monoxide Detector, LED Warning Lights, model 30CUD10. This smoke and CO detector has enhanced sensing technology that reduces false alarms often caused by cooking and sends fast alerts that help give your family more time to get out safely. To detect carbon monoxide, an electrochemical sensor is used. This alarm offers a modern 5 in. Design ideal for all living spaces such as living rooms, hallways, kitchens, and bedrooms. Comprehensively tested and designed to the latest UL standard for safety and reliability, the 5 in. Combination smoke and CO alarm is powered by a 10-year built-in lithium battery, so you never have to change a battery for the life of the detector (not a battery performance claim). When smoke or carbon monoxide is detected, the red LED light will flash in time with the loud 85-decibel alarm to help you seek safety. A test-hush button allows you to test the battery operations as well as silence nuisance alarms, should they occur. In addition, it's self-testing and easy to install with the included twist-and-click mounting bracket.

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