Pros / This smoke alarm detects fire and carbon monoxide, and it warns you about severe weather and natural disasters.

Cons / It has a short warranty period compared to the rest of the smoke detectors we reviewed.

 Verdict / The Halo+ is a great choice if you want to integrate your smoke detectors into your smart home. Its flaws are small, and it has many benefits.

The Halo+ is a great home smoke alarm. It’s easy to use and install, and it performed well in our detection tests. In addition to monitoring for smoke and fire, this device detects dangerous levels of carbon monoxide. It also displays weather alerts, something no other smoke detector we reviewed does, that warn you about severe weather and natural disasters in your area. The detector integrates well with smart home systems, so you don’t have to rely solely on the Halo app, although it’s very convenient and useful. One of its biggest shortcomings is its warranty length. It earned the Top Ten Reviews Bronze Award.

  • Detection Efficiency
  • Detector Lifetime
  • Ease of Use Score
  • Warranty
  1. In our tests, we used an aerosol detector testing spray to simulate smoke our laboratory and timed how long it took each device to sound its alarm.
    Higher is Better.
  2. 3  Halo+
    75.0 %
  3. 100.0 %
  4. 80.0 %
  5. Category Average
    71.67 %


We ran every smoke detector in our review through a battery of tests. Once installed, we sprayed test smoke from an aerosol can toward the device and timed how long it took to sound the alarm. We repeated this test 5, 10 and 15 feet away from the detector. The Halo+ detected smoke sprayed from 5 feet in 23 seconds, which is the longest time we recorded at that distance. At 10 feet, it took 31 seconds to trip the alarm, and at 15 feet, it failed to detect our test smoke at all. This wasn’t unexpected since only one of the alarms we tested detected smoke from that distance. Overall, this is one of the best-performing smoke detectors we evaluated.

And the Halo+ detects more than just smoke and fire – it also monitors your home for carbon monoxide, which is especially dangerous because it’s invisible and odorless. It also checks local radio for weather alerts and can give you advanced notice about severe weather such as tornadoes, hurricanes and winter storms, which gives you time to get to safety. No other smoke detector we reviewed monitors the weather.


As our testers evaluated each of the smoke detectors we reviewed, they noted how easy it was to install, set up and use, and they found that the Halo+ is one of the easier devices to work with. When they followed the instructions closely, installation was a breeze, and it only took a few seconds to connect the device to Wi-Fi. In addition, the Halo mobile app is quite intuitive. Only one other smoke detector was easier to use than the Halo+.

The Halo mobile app is available in the iOS App Store and Google Play. After you install it on your smartphone or tablet, you can use the app to control, monitor and test your smoke detector from anywhere you have an internet connection. When there’s an emergency while you’re away from your home, you receive notifications on your mobile device in real time.

This detector is compatible with other smart home systems. You can integrate the Halo+ with networks such as Iris and SmartThings, two of the most popular home automation systems. You can even connect it to your Amazon Echo and control it with your voice – this is the only smoke detector we evaluated that can connect to the Echo.


In addition to sounding a tone alarm, the Halo+ gives you voice prompts that let you know what kind of danger it detected and where it is in your home. This is very convenient because it allows you to control the situation quickly.

The Halo+ does its level best to avoid false alarms, but if the alarm does sound in a non-dangerous situation, you can use the app to silence it. This is great because you don’t have to grab a stool or step ladder to hush an ear-piercing alarm.

Because it’s hardwired into your home’s electrical grid and has a backup battery, you will probably never hear a low-battery chirp. In the case of a power outage, you can monitor the battery’s power level from the mobile app.

Warranty & Support

You can expect the Halo+ to work for 10 years, which is typical for the smoke detectors we evaluated. However, the warranty only covers the device for three years. Some smoke detectors we reviewed are under warranty for their entire expected life. If Halo did the same, it would provide reassurance that it is confident about the longevity and durability of its product.


The Halo+ is a top-notch smoke detector that can likely integrate with your existing home automation system. It’s easy to install, set up and use. Also, it performed well, though not perfectly, in our detection tests. In addition to detecting smoke and fire, it alerts you if there are dangerous levels of carbon monoxide, and it’s the only alarm that lets you know about severe weather. The company could offer a longer warranty, but that’s a minor complaint.

Specifications and Benchmarks


Detection Efficiency
Carbon Monoxide


Mobile Alerts
Voice Alerts
Remote Hush


Ease of Use Score
Wi-Fi Connect
Home Automation Platform
Iris, SmartThings, Amazon Echo
Power Options
Battery, Wired

Warranty & Support

3 Years
Detector Lifetime
10 Years
Support Channels