Unless your smoke alarm is connected to a security system, it's no good if nobody's around to hear it. Enter the Leeo, a clever little night light that can detect a smoke alarm or carbon monoxide detector beeping ($99, www.leeo.com). It even keeps track of temperature and humidity. Installation is as simple as plugging it in and downloading the app, which will call you in the event of an emergency. If you don't answer, it will work its way down a list of preselected emergency contacts. And it's pretty, too: The twistable ring adjusts the brightness of one of 16 million night-light colours.
-- The Washington Post
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