Protect your family with the Kidde Smoke & Carbon Monoxide Detector for Home, AA Battery Powered, LED Notifications, 3-Pack, model 30CUDR. This modern smoke and carbon monoxide detector alarm features advanced sensing technology to reduce false alarms caused by cooking.*** Today’s fires burn faster and hotter than ever before, so you need reliable fire safety protection. Fast alarm alerts help your loved ones get to safety quicker, giving you peace of mind. 3 LED lights— green = normal operation, amber = operating error, red = smoke detected—alert you immediately for smoke or CO detected and assure you that the alarm is working properly. With up to 3x more precise smoke detection, you can depend on Kidde.** This self-testing smoke and CO alarm is easy to install—no wiring required—just twist and lock with included mounting bracket. Ideal for living rooms, hallways, kitchens, & bedrooms, because smoke and carbon monoxide detectors should be on every level of your home. Tested to meet the latest UL standards to safeguard your home from smoke hazards. * 29% faster average smoke detection based on internal testing of smoldering wood fires for Kidde 9th Edition vs. leading competitor 8th Edition product ** In terms of consistency and range of obscuration rate, based on internal testing for Kidde 9th Edition vs. leading competitor 8th Edition products. *** When compared to prior Kidde generations of smoke alarms.