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First Alert Onelink Hardwired Wi-Fi Smoke & Carbon Monoxide Alarm with Battery Backup, HomeKit-enabled - AC10-500

  • First Alert Onelink Hardwired Wi-Fi Smoke & Carbon Monoxide Alarm with Battery Backup, HomeKit-enabled - AC10-500
  • First Alert Onelink Hardwired Wi-Fi Smoke & Carbon Monoxide Alarm with Battery Backup, HomeKit-enabled - AC10-500
  • First Alert Onelink Hardwired Wi-Fi Smoke & Carbon Monoxide Alarm with Battery Backup, HomeKit-enabled - AC10-500
  • First Alert Onelink Hardwired Wi-Fi Smoke & Carbon Monoxide Alarm with Battery Backup, HomeKit-enabled - AC10-500
  • First Alert Onelink Hardwired Wi-Fi Smoke & Carbon Monoxide Alarm with Battery Backup, HomeKit-enabled - AC10-500
  • First Alert Onelink Hardwired Wi-Fi Smoke & Carbon Monoxide Alarm with Battery Backup, HomeKit-enabled - AC10-500
The world's first HomeKit-enabled Wi-Fi Smoke and CO Alarm

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Regular Price: $159.95
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onelink wifi combo alarm with Apple Homekit

Onelink by First Alert. Always Connected. Always Protected.


The world's first Hardwired HomeKit-enabled Wi-Fi Smoke + CO Alarm:
Tested to the highest industry standards for safety and security, plus with HomeKit, privacy is built in and data is always encrypted.

10 year sealed battery for peace of mind:
No costly battery replacements for the life of the alarm and no low battery chirps in the middle of the night.

Be notified when something is not right:
This alarm sends you notifications in the event of a smoke or carbon monoxide emergency, you can also test and silence false alarms on your iPhone or iPad. Requires iOS 9.0 or later.

Alarms work together and will talk to you:
Telling you the type of danger (smoke or CO) and where it is located. These alarms will also work together, when one Onelink alarm sounds all wirelessly interconnected Onelink alarms will sound as one.

Unique Bluetooth mesh for constant connectivity:
These alarms utilize unique Bluetooth mesh to speak with each other and Wi-Fi allows users to receive emergency notifications.

The HomeKit-enabled Onelink by First Alert Wi-Fi Smoke + Carbon Monoxide Alarm and the free Onelink Home app on your iPhone or iPad work for your peace of mind, so you know your home is safer and truly just one link away. This alarm will detect and alert you in the event of a Smoke or Carbon Monoxide emergency. With the Onelink by First Alert Wi-Fi Smoke+Carbon Monoxide Alarm you can forget about battery replacements because this alarm doesn't need them. This alarm was designed to last for 10 years, the longest time permitted by the National Fire Code. This product is intended for non-professional do it yourself installation. If you would like information about a professionally installed and monitored system, please contact First Alert Professional. First Alert Professional is not affiliated with BRK Brands, Inc.

Onelink by First Alert. Always Connected. Always Protected.


  • 2 in 1 protection/Photoelectric smoke and electrochemical CO sensors
  • 10 Year CO Sensor/10 Year End of Life/ Ten Year Battery
  • 10 year sealed battery/no costly battery replacements for the life of the alarm
  • No low battery chirps in the middle of the night
  • Wi-Fi and Bluetooth Wireless Interconnect
  • Hardwire Compatibility - Can be interconnected with all First Alert/BRK hardwired smoke, CO and Combo alarms
  • Voice with Location - Voice announces programmed location of the unit and danger detected
  • Multicolor Indicator Ring Provides visual indication of various alarm states
  • Bluetooth Mesh Network Communication/2 way communication allows alarms to speak with one another
  • Utilization of Wi-Fi allows users to receive emergency notifications
  • Receive notifications via iPhone, iPad and iPad Touch (Requires iOS 9.0 or later)
  • 10 Year Limited Warranty
Click Here to Write a Review for this Product. Review

Average Customer Rating Based on 2 reviews: Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 no problems so far - 06/01/2016
Reviewer: Arthur Price
I installed two of these to replace older wired in alarms I had. Last week I also purchased two of the DC battery only units for two rooms that previously did not have alarms so no wiring. All alarms communicate well together. Hopefully these will last the full 10 years.


Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Thank You. - 02/25/2016
Reviewer: Jason Lintner
Thank You for making this. We live where no one would be able to tell that something was wrong at our house if we were not home. We have a pellet stove and pets and when not at home you just never know when something could malfunction. This security allows us to have the peace of mind that in the event of an emergency we would be notified on our iphone to come home, call a friend, or call 911 for help. Thanks again.

Q: What are the basic iphone and system settings needed for this product?
A: iPhone 5s and above, iPad 3 and above, iPod Touch 5G and up with iOS9. Your ipone should have WiFi and Bluetooth turned On. Wifi Router running on 2.4 GHz range. If you use iCloud, you must also turn on Key Chain.

Q: I just purchased a Onelink alarm, but it isn't connected to the Internet. What do I do?
A: If your alarm hasn't been added to a Onelink Account, follow these instructions to add it:

Download the Onelink app. Choose the Onelink product you purchased. Follow the instructions in the app to install and set-up

Q: How do I connect my alarm to WiFi?
A: If your alarm has been added to a Onelink Account, but it has lost connectivity, there are a few things that could be going on:

  • Check that your home Wi-Fi network is still connected to the Internet.
  • Remove wireless interference from other products that use a 2.4GHz wireless signal.
  • Try moving or temporarily unplugging any cordless phones, baby monitors, and wireless video equipment.
  • Check the distance of the offline Onelink alarm from your Wi-Fi access point.
  • Assure your router is set to 2.4 Ghz and Not to 5.0 Ghz.

Q: Why might I keep geting a message that states "Pairing Failed"?
A: Verify you are either scanning or entering in the correct pairing code. If you cannot get the unit to Pair via Bluetooth force close the app. IF YOU ARE USING iCloud YOU MUST ALSO TURN ON Apple Key Chain in your Settings. Then swipe away the Onelink Home App and start again after the pushing the alarm terst button 5 times to reset the alarm. Retry the pairing process now from the beginning.

Q: How can I interact with Siri?
A: Siri utterances are now available!You can interact with Siri using the following commands:
- How is my CO Detector?
- How is my Smoke detector?
- Do I have a smoke detector?
- Is the smoke alarm tripped?
- Is the CO alarm tripped?
- How is the Carbon Monoxide detector?
- Change the brightness on my smoke detector to [x] percent.

Q: Where should I install my First Alert Onelink combination Smoke and Carbon Monoxide alarms?
A: Minimum coverage for Smoke Alarms, as recommended by the National Fire Protection Association (NFPA), is one Smoke Alarm on every floor, in every sleeping area, and in every bedroom (See "Regulatory Information For Smoke Alarms" for details on the NFPA recommendations). For CO Alarms, the National Fire Protection Association (NFPA) recommends that a CO Alarm should be centrally located outside of each separate sleeping area in the immediate vicinity of the bedrooms. For added protection, install additional CO Alarms in each separate bedroom, and on every level of your home.

Q: What are the benefits of having wireless interconnect?
A: When one Onelink alarm goes off all wirelessly connected Onelink alarms will sound as one. The Onelink alarm will also talk to you, letting you know what type of danger (smoke or CO) and where the danger is located.

Q: What is the benefit having a First Alert Onelink combination Smoke and Carbon Monoxide alarm?
A: There are many benefits of having the Onelink Combination Smoke and Carbon Monoxide alarm. One reason being is the fact that it helps protect for the lifespan of 10 years against both deadly threats in one unit. This alarm has sensing technology that works actively to help better protect you and your loved ones. It also contains the wireless interconnect feature which allows you to connect each of your First Alert Onelink alarms so when one alarm sounds, they all will sound. When seconds count in an emergency it provides an audible indication of the possible threatened area and more importantly what area to investigate or to avoid. Another benefit of this product is that it contains Bluetooth and Wi-Fi connection so you can be connected to your home even if you are away.


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