Smart sensors are a bit like the power-ups you might aim for in a video game—add one or several to your smart home, and they’ll give your system a turbo boost.
These matchbox-sized devices are typically small enough not to stand out and are meant to be placed in areas where you want to monitor activity or changes in ambient conditions, and once something happens, they send you a smartphone alert. They can variously detect temperature or humidity, whether a door, window, or cabinet has been opened, or simply if someone or something has entered a room.
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