Set up and connect the ADT Smoke Alarm

A smoke alarm sensing smoke

Whether you’re in your bedroom fast asleep or out of town, ease the fear of experiencing a house fire when you set up your ADT Smoke Alarm. It send alerts to the SmartThings app on your phone when it detects smoke and extreme temperatures so you can take swift action.

Before you get started

Smoke alarms are extremely important, so it's imperative that you set them up correctly. Keep these things in mind before you set up your ADT smoke alarm:

  • Make sure you are within 350 feet of the ADT Security Hub. Exact range depends on your home’s construction, the environment, the position of your ADT Security Hub, and the position and number of other connected devices.


  • Make sure your ADT Security Hub is disarmed before connecting a new device.


  • Only set up one new device at a time, so it can pair correctly.


  • Do not remove the battery tab until you are ready to set up the smoke detector.

Connect the Smoke Alarm

Get your ADT Smoke Alarm set up so you can start protecting your home in case of a fire.

  1. First, decide on a location for mounting the ADT Smoke Alarm. On your phone, navigate to and open the SmartThings app.


  2. Tap Menu (the three horizontal lines), and then tap the Location drop-down menu to find the ADT hub's location.


  3. Tap Add (the plus sign), and then tap Device.


  4. Under the By brands tab, tap ADT, and then tap ADT security devices.

  5. Select ADT Smoke Alarm from the list of devices.

  6. Use your phone’s camera to scan the smoke alarm’s QR code. If the QR code isn’t working, tap ADD DEVICE BY CODE and enter the code manually. It can be found on a sticker on the smoke alarm or inside the user manual.

  7. Then, use the on-screen instructions to finish connecting the alarm to SmartThings.

Mount the Smoke Alarm

Once you've connected the smoke alarm to the ADT hub, you can mount it on the ceiling. First, install the mounting base using the two screws and anchors provided. Place the alarm inside of the mounting base, and then turn the alarm clockwise until it clicks into place. Now you should test the alarm to see if it works.

Safety tips to consider

  • This equipment should be installed in accordance with the National Fire Protection Association’s Standard 72.

  • Specific requirements for smoke alarm installation vary from state to state and from region to region. Check with your local fire department for current requirements in your area.

  • If you can’t mount it on the ceiling, the smoke alarm can be mounted on a wall (if local ordinances permit) provided that: the top of the detecting element is between 6 and 12 inches below the ceiling and the bottom of the detecting element is above the level of any door openings.

Tips for placement

Let us help you choose the best locations for your ADT Smoke Alarm. Ideally, per the National Fire Alarm Code (NFPA Standard 72), a smoke alarm should be installed in the following places:

  • All sleeping and guest rooms

  • Outside of each separate dwelling unit sleeping area, within 21 feet of any door to a sleeping room, the distance measured along a path of travel

  • On every level of a dwelling unit, including basements

  • On every level of a residential board and care occupancy (small facility), including basements and excluding crawl spaces and unfinished attics

  • In the living area(s) of a guest suite

  • In the living area(s) of a residential board and care occupancy (small facility)

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