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HolidayBuyer's Guide

Siri plus smoke detection

Responsive sensors

Easy installation

Simple setup

Blue flashes to sync

What's in a name?

Testing with smoke

Sounding the alarm

The app

Interconnected safety

The first smoke detector to work with Apple's HomeKit, the OneLink by First Alert Wi-Fi Smoke and CO Alarm connects to your home's Wi-Fi network, sends you push notifications and responds to voice commands. It even works with the dumb smoke detectors in your house. Click through to find out how.

Caption by / Photo by Tyler Lizenby/CNET

Available in a $120 hard-wired model and a $110 battery-powered version, the First Alert alarm uses photoelectric sensors to catch both fast and slow moving fires.

Caption by / Photo by Tyler Lizenby/CNET

Installing it is no different than putting a new ordinary battery or hard-wired smoke detector in place. You'll position and mount the backplate first, for added convenience.

Caption by / Photo by Tyler Lizenby/CNET

The app walks you through each step. When you're ready, simply twist the alarm onto the mounted backplate. It'll audibly greet you, then the light will start flashing blue when it's ready to sync.

Caption by / Photo by Screenshots by Andrew Gebhart/CNET

Once the blue light flashes, you'll use your phone to connect the alarm with your Wi-Fi network.

Caption by / Photo by Tyler Lizenby/CNET

Connect the alarm, and you can add it to your HomeKit home and assign it to a room.

Caption by / Photo by Screenshots by Andrew Gebhart/CNET

Once we were up and running, we used cans of smoke and smoke candles to put the alarm to the test.

Caption by / Photo by Tyler Lizenby/CNET

The alarm itself is loud, and issues a warning that includes the type and location of the emergency.

Caption by / Photo by Tyler Lizenby/CNET

You can use the app to test the alarm and call 911 during an emergency.

Caption by / Photo by Screenshots by Andrew Gebhart/CNET

The hard-wired version of the alarm also talks to other hard-wired alarms, letting you smarten up multiple alarms with one connected device.

Caption by / Photo by Tyler Lizenby/CNET
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