FireFighter Wired Smoke Alarm Audio Detector


Why not use you already have?

Add monitoring capability to existing interconnected smoke detectors. The Firefighter is simple, reliable, and designed to be the best value fire monitoring for homeowners.


  • FCC, IC and ETL listed in US and Canada to UL 985 standard
  • Fire department dispatched when fire is detected
  • More overall intelligence, thanks to the smart security system
  • Automatic notifications to your phone such as low battery alerts
  • Reliable cellular communication does not depend on spotty WIFI

Panel Compatibility

IQ Panel 2 319.5Mhz version IQ Panel 2+ 319.5Mhz version IQ Panel 4 319.5Mhz version

1 year warranty



24/7 professional monitoring sends the fire department

It sounds silly but some flashy and expensive “smart” smoke detectors can’t do the single most important thing you need after sounding an audible alarm – call the fire department. With Surety professional monitoring the SLX-AD-T3 Firefighter sends the fire department whether you’re away from home, unconsious, or overwhelmed.

Life safety devices should not depend on WIFI

Connects through cellular so it’s more reliable and doesn’t depend on WIFI. Add WIFI in addition to cellular for maximum reliability with dual path communication.

Uses your existing interconnected smoke detectors

If you already have interconnected smoke detectors, why spend more than you need to monitor them? Save money and clutter by monitoring you home with a single small Firefighter module.

Smart home, not smart smoke detector

The whole is greater than the sum of its parts. It’s time to stop thinking about smart smoke detectors and start thinking about what fire detection looks like in a truly smart home. Smoke detectors should detect fires. With Surety, the intelligence in the system.

Whole home integration

As a part of the larger smart security system, the Firefighter can do things like automatically turn off your HVAC fan when fire is detected, preventing smoke from circulating around the house and giving you more time to get out.

Don’t worry, this device integrates seamlessly

Surety is your connection to the award winning ecosystem, allowing you to use hundreds of best-in-class security and home automation devices from a single app that runs on almost anything. All that and the industry’s best customer service are why Surety is your home’s best friend.

Specs & Guides

Part number
1.6″ x 2.9″
Within 6 inches of wired smoke
3V lithium CR123A
Battery Life
4 years
Wireless Signal
319.5 MHz
Operating Temperature
32°F (0°C) to 120°F (49°C)
Relative Humidity
5-95% RH non condensing

Plan Compatibility

Security Alarm & Automation
Automate Alarm Home
Cameras Only
View Cam Cam Plus
Alarm, Automation & Cameras
Protect Complete


How do I automatically turn off my HVAC fan when a fire is detected?
Log into the website and go to Automation -> Rules. Enable the Fire Safety rule.

Still have questions? We’ve got answers!
The Surety support forum is the #1 resource for answers to all your questions about setting up and using the thermostat.
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Additional information

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