10 Best interlinked smoke alarms in Canada

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Last Updated - 2026/07/01

Best Choice

01
First Alert

First Alert SC9120BCA Hardwire Combination Carbon Monoxide and Smoke Alarm

13% Off

9.5 Easy installation

9.1 Simple to use

8.7 worth the money
Main highlights

Loud 85db Siren
Combination smoke and CO alarm eliminates the need for 2 electrical boxes
Battery backup ensures alarms work even during power outages
Alarm is wired directly into your electrical system and includes a battery backup and mute button
5-year limited warranty
120-Volt hard-wired detector. Electrochemical, Ionization sensor type
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9.7

Exceptional

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Value for Money

02
First Alert

First Alert Smoke and CO Alarm, SC7010BA, White

21% Off

9.1 Easy installation

9.1 Simple to use

8.4 worth the money
Main highlights

Keep your family safe with this talking hardwired smoke and carbon monoxide alarm
Features electrochemical Carbon Monoxide sensing technology and photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarm
Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
10 year limited warranty; Equipped with end of life signal chirp, so you know when it's time to replace the unit for your safety
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9.6

Exceptional

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03
First Alert

First Alert 9120BA Hardwired Smoke Alarm with 9V Backup Battery, Smoke Detector

9.7 Battery Duration

9.3 Easy installation

9.1 Simple to use
Main highlights

This alarm runs on 120-volt AC power and must be connected directly to your home’s electrical system.
Comes with a 9V battery that provides power in case of an electrical outage. It is not a battery-only alarm.
Can be linked with up to 12 other First Alert or BRK hardwired smoke alarms for whole-home safety.
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9.5

Excellent

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04
First Alert

First Alert Battery Operated Smoke and Carbon Monoxide Alarm, White, PRC700A-6

9.9 Sheerness

9.7 Simple to use

9.5 Easy installation
Main highlights

Provides 2-in-1 protection from two deadly threats
Photoelectric smoke sensing technology
Low profile design
Easy intstallation
Battery operated
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9.4

Excellent

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05
GLBSUNION

Combination Smoke and Carbon Monoxide Detector Alarm, Beeps Warning Smoke Co Alarm Clock for Travel Home Bedroom Living Room Basement Attics Cars, Battery Operated, Comply with UL 217/UL 2034, 1 Pack
Main highlights

Test this alarm First, HOW TO TEST IT(3 steps): 1. Install the batteries in clean air, then press the test button for five seconds to test the unit electronics, beeps will sound if it's normal; 2. Leave it in clean air for one minute; 3. put it into a sealed bag, spray some smoke or CO gas into the bag and seal it. Waiting for about one minute, the Alarm will go off if it's normal. NOTE: DO NOT test it by directly burning something under this alarm, which is an invalid test.
Keep your family safe with this battery operated smoke and carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO and smoke levels, even if there's a power failure. Features an electrochemical sensing technology and a photoelectric sensor that detects the larger particles of a smoldering fire. Please thoroughly read PRODUCT DESCRIPTION and the user manual before using.
Indicator lights on the face of the unit display the presence of smoke and carbon monoxide, while an 85dB beeps siren provides a clear, loud warning upon detection. If the unit sounds all the time or it is of malfunction, please reinstall the battery to repeat the operation OR Please put it into clear air until it's normal. If CO ALARM BEEPS：Only when detected clear air can it silence the CO alarm(if the room still exists high level of CO, the alarm will keep alarming until the air was cleaned)
Dimensions: 4 * 4 * 1.5 inch. Simple to use, NOTE: When installation please follow the circular arrow direction that Marked on the product for rotating the Mounting base/Bracket: PRESS DOWN AND TWIST; 【Do not install it in or near kitchens/garages/furnace room/bathrooms】. A single button tests the unit or silences the alarm. Low battery signal mute, quiets low battery signal for up to 8 hours. if there is any problems, please feel free to contact us, we are always here to help you.
2 * AA Battery-operated unit installs quickly and easily without an electrician, Can connect to other compatible detectors, To ensure all alarms will sound when threat is detected(Battery not included)
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9.3

Excellent

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06
First Alert

First Alert 10 Year Battery Smoke and Carbon Monoxide Alarm with Voice Alert, White, PRC710VA-6

28% Off
Main highlights

Tells you where the danger started
Provides audible and voice alert
Provides 2-in-1 protection from two deadly threats
Easy intstallation
Battery operated
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9.2

Excellent

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07
First Alert

First Alert 9120LBLA Hardwire Smoke Alarm with 10 Year Battery

9.7 Battery Duration

9.3 Easy installation

9.1 Simple to use
Main highlights

Smart Technology - helps reduce the number of nuisance alarms
Perfect Mount - allows for easy alignment of alarm
Locked Battery Drawer
Latching alarm indicator - remembers which unit initiated an alarm
10 Year Lithium Battery Backup
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9.1

Excellent

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08
First Alert

First Alert PR700A Slim Series Battery Powered Photoelectric Smoke Alarm

9.7 Simple to use

9.5 Easy installation

9.1 worth the money
Main highlights

Tamper resistant-locks alarm to mounting bracket to prevent removal of battery and/or alarm
Photoelectric smoke sensing technology
Perfect for apartment, dormitory or hotel applications
Low profile design - sleek, contemporary design blends into any decor
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9.0

Excellent

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09
First Alert

First Alert 9120A Hardwire Smoke Alarm
Main highlights

Note: Writings on the product may vary
Ionization smoke Sensor reliably detects particles from fast-flaming fires. 120-Volt hardwired smoke alarm Wires directly into your home's electrical system
Gasket-less mount system for hassle-free installation
Can integrate with up to 12 other First Alert or brk hardwired smoke detectors
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8.9

Very Good

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10
First Alert

First Alert FG250BA Battery Smoke Alarm
Main highlights

Tamper resistant locking pin - locks alarm Cover to prevent removal of battery. Perfect for apartment, dormitory or hotel applications
Silence feature - silences nuisance alarms
Dual ionization - dual ionization sensing chamber. Generally more Effective at detecting small particles produced by Flaming fires. Sources may include paper or kitchen grease
9V battery included approved for RV use
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8.8

Very Good

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