First Alert

A working smoke and carbon monoxide alarm is one of the simplest, most effective ways to keep your home and family safe. First Alert has been a leader in home safety for decades, offering reliable, proven solutions that detect danger before it becomes a disaster.

Fires can ignite without warning. Carbon monoxide is silent and invisible. Without a proper alert system, you might not realize the threat until it’s too late. First Alert smoke detectors and First Alert smoke and carbon monoxide alarms respond fast when every second counts.

What Features Should You Look For?

Sensors

Photoelectric sensors are ideal for detecting slow, smouldering fires, like those from overheated wiring or furniture. Ionization sensors respond faster to fast-burning fires, such as grease or paper fires. Electrochemical sensors are used in carbon monoxide detectors for accurate, reliable detection of CO gas. Multi-gas options that detect methane and propane add a layer of safety for homes with gas stoves, heaters, or appliances. Some First Alert smoke detectors combine sensor types for more complete fire detection.

Digital Display

In most models, a First Alert carbon monoxide detector includes a digital screen that shows real-time carbon monoxide levels and room temperature. This feature is available in several First Alert smoke and carbon monoxide alarms and helps you spot potential issues early, before the alarm even sounds.

Wireless Connectivity

Certain models connect wirelessly with other compatible alarms. When one unit goes off, all linked alarms sound. This is ideal for multi-level homes or larger spaces where early warning matters.

Some alarms use a sealed lithium battery that lasts up to 10 years with no need for replacement. Others run on replaceable AA or 9V batteries, which should be changed at least once a year. Sealed models reduce tampering, while replaceable battery models give you more control if you prefer regular checks.

Battery Backup for Hardwired Alarms

Hardwired alarms should always include a battery backup. If the power goes out, your protection doesn’t. Look for alarms that stay active in any condition.

Portable Options

For travel, rentals, or temporary setups, a portable battery-operated First Alert carbon monoxide detector offers quick, reliable protection with no installation required.

Z-Wave models connect with smart hubs like Ring for remote alerts and integration with other smart devices. Ideal for homes with an existing Z-Wave system.

Frequently Asked Questions About First Alert Products

Do I need professional installation?

In many cases no. Most First Alert smoke detectors and First Alert smoke and carbon monoxide alarms are made for easy DIY installation. Battery-powered units can be mounted using basic tools with no wiring required. Hardwired alarms may need a screwdriver and access to existing electrical wiring, but they’re generally compatible with standard household setups.  Always turn off the power before installing or replacing a hardwired unit.  If you’re not comfortable with wiring, a licensed electrician should be called.

How to change a battery in a First Alert smoke detector?

To change the battery, locate the battery compartment, which is usually found on the front or side of the unit. Slide open the door or press the latch, remove the old battery, and insert a new one, making sure the polarity matches the markings. Use the recommended battery type (typically AA or 9V). Close the compartment, then press the test button to confirm the alarm is working.

Do First Alert smoke detectors expire?

Yes, all First Alert smoke detectors expire. Most models have a lifespan of 10 years from the date of manufacture. After that, the sensors may not work reliably. Look for a printed expiration or manufacture date on the back of the unit. If your alarm is past 10 years old, replace it immediately for continued protection.

What if my alarm keeps going off without reason?

If your First Alert smoke or carbon monoxide alarm goes off repeatedly with no clear danger, it could be reacting to steam, cooking smoke, dust, or even insects. Avoid placing alarms near kitchens, bathrooms, or vents. Clean your unit gently with a vacuum or soft cloth to remove dust buildup. If false alarms continue, consider relocating the unit or switching to a model designed to reduce nuisance alerts.

How do I test my First Alert smoke or carbon monoxide alarm?

Press and hold the test button on your alarm until it sounds. You should hear a loud tone, and for combination models, both smoke and carbon monoxide alerts will activate. If nothing happens or the sound is weak, replace the batteries or the unit itself if it’s old. Testing once a month is a simple way to confirm that your First Alert smoke and carbon monoxide alarm is working properly.

Aartech Canada is an authorized First Alert distributor. First Alert is a leading manufacturer of carbon monoxide detectors and smoke detectors. They are responsible for the creating of one of the first residential smoke alarms with the goal of trying to make the world a safer place. First Alert believes in reliability, quality, trustworthiness and dedication to helping save lives. They continue to push for more innovative solutions in carbon monoxide and smoke detection. Contact Aartech today to speak with a support representative about the many First Alert products available to you.

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