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  • Upgrade to Smart Smoke & CO Detection (Canadian Model Canadian smoke alarm)
  • Get instant mobile notifications for smoke and CO detection via the First Alert app.
  • Interconnected, so when one alarm sounds all compatible alarms sound as one.
  • Voice alerts tell you the type and location of danger in your home.
  • Battery backup ensures continuous monitoring even during power outages.
  • Quick connect plug simplifies setup and replacements without rewiring.
  • Fully compatible with and replaces Google Nest® Protect Alarms.

The fire safety you trust is now connected and compatible. Add smart fire safety alerts to your home with the First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide (CO) Alarm. This 2-in-1 device elevates your home’s fire and CO safety whether home or away.

Upgrade to a Smart Smoke & Carbon Monoxide Detector

Effortlessly integrate the First Alert SC5 Hardwire Smart Smoke and CO Alarm into your home's safety system. Whether you're adding new detection or it's time for a replacement, the quick connect hardwire adapter plug makes installation simple with no need for rewiring. For enhanced safety, interconnect these alarms so that when one sounds, all compatible alarms throughout your home will sound, providing an earlier warning.

Advanced Safety Features

This smart 2-in-1 hardwired alarm is packed with advanced features and the latest in smoke alarm technology. In a fire or CO emergency, the alarm provides clear voice alerts with a "Heads-Up" warning, telling you the type and location of the danger in your home to help you escape safely. Plus, you'll receive convenient mobile alerts through the First Alert app, keeping you informed whether you're at home or away.

  • 2 -in-1 smoke/fire and carbon monoxide alarm for detection against both threats.
  • Sends mobile alerts whether home or away in the event of a fire or CO emergency.
  • Voice alerts with Heads-Up warning tell you the type and location of danger in your home.
  • Interconnect so when one alarm sounds all compatible alarms sound as one.
  • Installation is quick and easy, with hardwire and battery alarm options available.
  • Equipped with Precision Detection Technology to help reduce nuisance alarms.

Reduce Annoying Alarm Chirps

The First Alert SC5 Hardwire Smart Smoke and CO detector is designed for easy installation and maintenance, ensuring your home and family stay protected. You can easily test that your alarms are working correctly using the app or the alarm's single test/silence button. This alarm also includes a battery backup for continuous protection during power outages and will provide both in-app and audible notices when the unit itself needs to be replaced, helping to eliminate unexpected, late-night chirps.

Smart Smoke & Carbon Monoxide Detection

The First Alert App connects what matters most and puts you in control. Connect your smart smoke & CO alarm with the app to check the alarm's status, test alarm's function and receive mobile alerts if smoke and CO are detected.

Downloading the First Alert app is a crucial step to unlock the full potential of your First Alert Smart Smoke and Carbon Monoxide Alarm, transforming basic detection into a comprehensive home safety system. The app serves as your personal command center, delivering critical alerts directly to your smartphone no matter where you are. This means if a smoke or CO event occurs while you're at work, on vacation, or even just in another part of your house, you'll receive an instant notification, allowing for quicker response times and potentially mitigating damage or danger. This remote monitoring capability provides an unparalleled sense of security and peace of mind.

Beyond immediate emergency notifications, the First Alert app significantly enhances the usability and maintenance of your smart alarms. You can easily check the status of your detectors, including battery levels, directly from your phone, eliminating the guesswork and preventing those annoying late-night low-battery chirps. The app also allows for convenient remote testing of your alarms, ensuring they're always functioning optimally without needing to physically reach each unit. This proactive approach to maintenance ensures your home is consistently protected, giving you confidence in your safety system.

The App Is Now Available:
first alert app on apple
first alert app on google play
Learn More About The App
first alert smart alarm app
Does the First Alert SC5 Smart Smoke & CO Alarm use the same mounting bracket as the Nest Protect?
Yes, you can use the same mounting bracket to install a First Alert SC5 Smart Smoke & CO Alarm when replacing a Nest Protect Alarm. So there is no rewiring needed if replacing a Nest Protect hardwired device with the included quick connect adapter plug.
How will my Nest Protect Alarm work with the First Alert SC5 Smart Smoke & CO Alarm?
Your new First Alert SC5 Smart Smoke & Carbon Monoxide Alarm will work seamlessly alongside your other Nest Protect devices and will work with the Google Home app. Requires the Google Home app and a Google account.
Will First Alert's SC5 Smart Smoke and Carbon Monoxide Alarm work with the Google Home app?
Yes, Both this alarm and the Google Nest devices can be managed within the Google Home ecosystem. You’ll use the Home app to set them up, receive alerts, and silence alarms.
My Nest Protect is expiring. How can I replace my device?

To meet certification standards, 2nd gen Nest Protect must be replaced after 10 years from the date of manufacture. When you’ve determined that your device needs to be replaced, you’ll need to select a replacement device, uninstall your Nest Protect, and set up your replacement device.

The First Alert Smart Smoke & Carbon Monoxide Alarm is a compatible replacement for your 2nd gen Nest Protect. Note: First Alert Smart Smoke and Carbon Monoxide Alarm will work with your other Nest Protect devices only in the Google Home app.

What alarms are Interconnect compatible with the hardwired SC5 Smart Alarm?

First Alert Smoke Alarm Models:
SMI100-AC
SM100V-AC
SM110V-AC
SM110LED-AC
SMI105-AC
7010B
9120B

First Alert/BRK CO Alarm Models:
CO5120BN

First Alert/BRK Heat Alarm Models:
HD6135FB

First Alert Smoke & CO Alarm Models:
SMCO600NV-AC
SMCO600NV
SMICO100-AC
SMCO100V-AC
SMICO105-AC
SMCO110V-AC
SMCO110LED-AC
SC7010BV
SC9120B

Google Nest Protect Alarm Models:
Nest Protect Smoke + CO Alarm - Battery and Wired

*Compatibility with Google Nest Protect requires the Google Home app and a Google Account.

Product Details
Product Specs
UPC:
194160013731
MPN:
FSMCO600NVACACL1
Category:
First Alert Canada
Product Manuals
First Alert Canada SC5 Hardwire Smart Smoke and Carbon Monoxide Alarm Video

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