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5 inches. It's square, with rounded corners. The center of the device has a circular LED that changes color depending on what's happening; yellow means there's smoke or carbon monoxide, but it hasn't yet reached critical levels; red means you need to get the heck out of there. You also get auditory alerts, which we'll get into later. Also helpful is that the light will briefly turn on at night if it senses motion, to help you see your way in the dark. Installation and SetupTo install the Nest Protect, you first screw a base plate into the ceiling, and then attach the main body of the smoke detector onto the base plate.

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2 Smart Doorbell Camera Product Category, Application and Specification 3. 6. 3 EquesHome Smart Doorbell Camera Sales, Revenue, Price and Gross Margin2014 2019 3. 6. 4 Main Business Overview 3. 7 Smanos 3. 7. 1 Company Basic Information, Manufacturing Base and Competitors 3. 7. 2 Smart Doorbell Camera Product Category, Application and Specification 3. 7.


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At first glance, indoor security cameras may seem all alike, but they vary in key areas, such as when they film, video quality, video storage, and size. Cameras can film continuously, only when triggered by a build in or connected motion detector, when you schedule, or when you remotely access the camera. They may or may not include a built in motion sensor. Cameras vary in the resolution quality of their film, in their field of view, and in key features built in microphone, light, night vision, etc. Security cameras typically offer two options for storing videos, either on a local SD card or on the cloud.