Smart Device, Z-Wave Smoke Detector & Carbon Monoxide Alarm

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First Alert Battery Powered Z-Wave Smoke Detector & Carbon Monoxide Alarm. This battery-powered smoke detector and carbon monoxide alarm is certified to work with smart home systems such as Ring Alarm Base Station, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub (sold separately; Not compatible with Wink or Onelink). You will receive real-time notifications in the Ring or other home system App when smoke or carbon monoxide is detected. This device is 2"D x 5"W x 5"H and weighs 10.88 ounces.