• Works with most 9V battery powered smoke or carbon monoxide (CO) alarms and Wi-Fi connections (see a full list of technical requirements and device compatibility)
  • Easy to install into your existing smoke alarm without any tools
  • Sends notifications to your smartphone if your alarm sounds, so you’ll get alerts even when you’re away from home
  • Get notifications when your alarm batteries run low
  • Set up automations with your Telstra Smart Home. If you have a camera in the same room as your smoke alarm you can set up for a photo or video to be sent to your phone when the alarm goes off.
Available now

One-off charge on your Telstra bill

Roost smart smoke alarm battery with self-installation
$ 48

Roost smart smoke alarm battery

$ 0

Self installation

Buy now
$38.40 one-off charge on your Telstra bill.
Roost smart smoke alarm battery with professional installation
$ 84

Roost smart smoke alarm battery

Includes device installation fee

$ 96

Professional installation

Additional fees apply for installing further devices or custom installations. Find out more

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Great news, a Smart Home technician is available in your area. Add additional devices in the next step and have them professionally installed with your order.

We're currently unable to provide Smart Home professional installations in your area. However, you can self-install your Smart Home devices with our over-the-phone specialist support. Or, get a local electrician to help you.

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Roost smart smoke alarm battery is a battery that works with your existing smoke detectors to notify you when you need it most. It lets you know when a battery is low via SMS, and alerts you when you’re not home if the alarm goes off. 


Professional installation of a device

  • The professional installation of additional smart home devices incurs a call out fee of $96, plus additional charges for each device.
  • Professional installation includes the pairing of devices, basic placement of devices around your home (not mounting a device on the wall or ceiling), demonstration on how to use Telstra Smart Home and the Telstra Smart Home app, and setting up automations.
  • Customised installations include cabling runs, cable concealment, and wall or ceiling mounting of cameras. The additional charges for a customised installation will be quoted by the technician when on-site.


  • Download the Roost app, create a Roost account and pair your Roost smart smoke alarm battery.
  • Then add your Roost account to your Telstra Smart Home via our Telstra Smart Home app.

To organise a Telstra Smart Home technical expert to come to your place to get you up and running, please call us on 13 22 00 and select Option 1.


  • 802.11n 2x2 Wi-Fi, 2.4Ghz
  • 9V battery that connects into your smoke or CO alarm
  • 3-5 year battery life
  • Measures 48.3mm x 26.3mm, 17.3mm
  • Two year warranty


The Telstra Smart Home and Roost apps work on Android and iOS smartphones and tablets.

Check for a full list of technical requirements and device compatibility.

Questions about Telstra Smart Home? We can help.

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Learn how to get the most out of your smart home through CrowdSupport® – our online community.

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Our support pages are a great place to learn more about your devices, watch how-to videos, or troubleshoot any problems you may have.

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