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The Leeo Smart Alert Nightlight combines a color-changing glow you can control with your iPhone with a smart sensor that listens for your smoke alarm and carbon monoxide detector and alerts you when something is wrong.

$189.08 at Amazon
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Caption:Photo:Tyler Lizenby/CNET
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The nightlight plugs into a standard outlet.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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The compact shape means it won't block the other plug.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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Once it's plugged in, you'll see it start to glow.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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You can control the color via the iOS app.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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Just drag the icon to the color you want.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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The nightlight casts a warm, bright glow.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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You can control the brightness with the outer ring of the front face, or with the app.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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If an alarm sounds, the light blinks red. You'll also get a push notification, followed by a phone call.

$189.08 at Amazon
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Published:Caption:Photo:Andrew Gebhart/CNET
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The Leeo Smart Alert Nightlight also detects humidity and temperature. You can customize alerts for these as well.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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Leeo has a 75-foot (23-meter) listening range. Place it in the hallway so it can hear multiple rooms.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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Setting it up on Wi-Fi is as simple as it gets. Plug it in, open up the app, and enter your network information.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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The Leeo Smart Alert Nightlight helps you monitor your home from wherever you are.

$189.08 at Amazon
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Published:Caption:Photo:Tyler Lizenby/CNET
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