10 Best mains electric interlinked smoke alarms in Canada

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Last Updated - 2025/08/19

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01
GLBSUNION

Combination Smoke and Carbon Monoxide Detector Alarm, 2-Pack Beeps Warning Smoke and CO Alarms for Basements Travel Home Office House Bedroom Living Room Car, Battery Operated, Comply with UL 217/2034

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9.9 Precision

9.1 Easy installation

8.7 Simple to use
Main highlights

Simple to Use: Test/Silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, an alarm tone of over 85 dB will sound throughout your entire home, instantly alerting the entire household, even those in sleep, The unit is of malfunction if the unit sounds all the time, Reinstall the battery to repeat the operation Until normal.
Quick & Easy Installation with Guaranteed Quality: Product Dimensions: 4 * 4 * 1.5 inch, Requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; certified to meet the UL safety standards for your peace of mind and absolute confidence in our product. you can get: 1. two detector alarms with Mounting bracket, 2. one manual, 3. four screws.
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(Operated by 2 x 1.5V AA Batteries (not included)
Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85dB siren provides a clear, loud warning upon detection. Note: Normal smoke gas is Smoldering fire smoke gas, Smoldering fire smoke gas is different from kitchen/cooking oil fumes. the smoke alarm is designed to detect and alarm for normal Smoldering fire smoke ags, not for kitchen/cooking oil fumes, kitchen/cooking oil fumes causes many false alarm, so the new safety standard UL217 requires smoke alarm depletes the fales alarm caused by kitchen/cooking oil and reduce the rate of false positive. please install the device in the right place under instructions.
2-in-1 Accurate, Reliable & Highly Sensitive Alarm: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each other; every second counts; detects both fast and slow-burning fires, and instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
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9.9

Exceptional

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02
First Alert

FIRST ALERT Smoke and CO Alarm, SC7010BA, White

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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9.8

Exceptional

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Value for Money

03
First Alert

First Alert SC9120BA Hardwire Combination Carbon Monoxide and Smoke Alarm

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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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04
First Alert

First Alert 9120LBLA Hardwire Smoke Alarm with 10 Year Battery

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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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9.6

Exceptional

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05
First Alert

First Alert BRK 9120B Hardwired Smoke Alarm with Battery Backup, Single
Main highlights

Tamper resistant locking pins, single button silence/test and loud 85dB alarm
Quantity 48 - 9120B hardwired smoke alarms with battery backup; bulk pack with individual packaging
Open mounting design for easy installation with side load battery compartment for quick replacement and interconnectable up to 18 units (12 smoke, 6 CO/heat/relay)
120-Volt AC power with 9-Volt battery backup (included) to keep alarm functioning during power outage
10-Year limited warranty
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9.5

Excellent

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06
First Alert

First Alert PR700A Slim Series Battery Powered Photoelectric Smoke Alarm

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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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9.4

Excellent

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07
First Alert

First Alert SCO5RVA Battery Operated Combination Carbon Monoxide and Smoke Alarm

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9.5 Easy installation

9.5 Sheerness

9.3 Simple to use
Main highlights

Photoelectric sensor detects smoke while minimizing false alarms
Electrochemical CO sensor alerts you to carbon monoxide danger. Age 3 - 8 years
Date on the alarm indicates when the alarm was manufactured.
Combination smoke detector/carbon monoxide alarm detects two threats
Battery-operated unit installs quickly and easily without an electrician
A single button tests the unit or silences the alarm. Where to install - kitchen, living room, basement, bathrooms, hallway, indoors
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9.3

Excellent

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08
Sylzy

Carbon Monoxide Detectors Plug-in,5 in 1 Natural Gas Leak& Smoke Alarm with Battery Backup, HD Display Monitors CO, Smoke, Gas, Temperature & Humidity – Ideal for Home, RV, Apartment

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Main highlights

【High-Definition Display with Smart Brightness Control】The large HD screen clearly shows CO levels (ppm), smoke icons, combustible gas alerts, temperature (℃/F), humidity (%), power and alarm status. You can adjust the brightness (high, medium, low, off) to suit daytime or nighttime environments. Even when the screen is dimmed or turned off, the device continues monitoring and notifies you with a flashing indicator every 5 seconds.
【Comprehensive 5-in-1 Plug-in carbon monoxide Detector for Home and Travel】This upgraded detector integrates carbon monoxide, smoke, combustible gas (natural gas, LPG, methane, etc.), temperature, and humidity sensors into one compact unit. It plugs directly into 110V–220V AC outlets and is suitable for Canadian bedrooms, kitchens, RVs, basements, hotel rooms, and more—offering you round-the-clock protection.
【Built-in Rechargeable Battery】Equipped with a 1000mAh lithium battery, the Carbon Monoxide Detector provides up to 10 hours of backup during power outages. You no longer have to worry about safety monitoring being interrupted at night or while traveling. It also saves on battery replacement costs and supports eco-friendly use.
【Advanced Sensors for Fast and Accurate Detection】Features an electrochemical CO sensor, high-sensitivity smoke detection, and gas leak sensing (methane, LPG, propane, etc.). CO levels refresh every 2 seconds with a range of 0–999 PPM (±5% accuracy). Temperature is accurate to ± 5℃ (-10℃ to 50℃), and humidity is accurate to ±5%RH (5%–95%RH). Immediate alerts protect you and your family without delay.
【85dB Alarm +Visual Alerts for Real-Time Safety】When any of the detected gases exceed safe limits, the detector emits a loud 85dB alarm and the screen lights up to alert you immediately. Whether it's CO, smoke, or flammable gas, this all-in-one device acts as your first line of defense—ideal for both home and travel use.
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9.2

Excellent

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09
First Alert

First Alert SC9120LBLA Hardwire Smoke/Carbon Monoxide Alarm 10 Year Battery

14% Off

9.9 worth the money

9.5 Easy installation
Main highlights

Ionization smoke Sensor reliably detects particles from fast-flaming fires
Electrochemical Sensor accurately detects carbon monoxide
Can integrate with up to 12 other First Alert or brk hardwired smoke detectors
120-Volt hardwired smoke and carbon monoxide alarms wire directly into your electrical system
10 year sealed battery included
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8.9

Very Good

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10
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

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9.9 Precision

9.1 Easy installation

8.7 Simple to use
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
Dimensions: 4 * 4 * 1.5 inch, kindly measure your product dimension. 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. Any problems, please feel free to contact us.
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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8.8

Very Good

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