(4.9) 93,689 REVIEWS

    You Can't See Carbon  Monoxide.   But You Can See the  Numbers. 
 
    Carbon monoxide is invisible,  odorless, and potentially deadly.  Why wait for a traditional alarm to  sound?
 
    Our CO detector continuously  monitors carbon monoxide  levels and displays the reading  in  real time  — starting from 0  PPM.
 
   Know what's in the air.
   Catch rising CO levels early.
   Protect the people who matter  most.

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Carbon monoxide is the #1 cause of accidental

poisoning deaths in America.

Every year, over 400 Americans die from CO

poisoning most of them while sleeping. The

tragedy? Almost every victim had a "working"

detector on their wall. Green light glowing. Silent

CO comes from furnaces, water heaters, garages, stoves. You can't smell it. You can't see it.

You just don't wake up.

you can't see it. you can't smell it. and it doesn't hurt.

 

Carbon monoxide leaks from furnaces, water heaters, stoves and garages. It puts a child to sleep before they ever feel a thing. And if your detector's sensor has quietly died — the green light keeps glowing anyway.

Introducing: CO & Gas Detector

You Can't See the Danger. Now You Can See the Numbers.

Carbon monoxide, natural gas, and propane can build up in your home without you noticing.

Our professional-grade detector gives you real-time readings from 0 PPM, helping you stay aware of changing gas levels before they become a serious concern.

Simple to install. Easy to use. No tools. No electrician. No complicated setup.

Just install it in seconds and get the information you need to help protect your home and the people inside it.

Because peace of mind starts with knowing what's in the air.

Monitor. Detect. Protect.

★★★★★
I honestly don't usually leave reviews, but this one felt worth sharing. We have a gas stove and a gas water heater, and our house was built back in 2018. CO just wasn't something I thought much about. Our pediatrician actually mentioned it during my son's checkup, which is what finally got me thinking about getting detectors.
I ordered the 4-pack on Monday and had them set up by Saturday. Then Sunday morning, the one near our laundry room showed 11 ppm. I wasn't sure what to make of it, so I called my brother, who works in HVAC. He checked the water heater and found a bird's nest in the flue.
We have two kids, so honestly, that really scared me. I had only had these installed for a few days, and they were already showing me something I would have never known about otherwise.
Really glad we bought them.
Emily K.
✓ Verified · Cedar Park, TX · 2 weeks ago

THE PART NOBODY TELLS YOU
Your alarm is built to stay silent until it's almost too late.
Every standard CO alarm is built to one safety standard. Here's what that standard actually allows it to do before it makes a single sound:

Built for the Moments That Matter Most

Carbon monoxide and gas leaks can happen without warning. A detector shouldn't just sit on the wall — it should help you stay informed about what's happening in the air around you.

Know What's in Your Air Before It's Too Late

Most traditional CO detectors only sound an alarm once carbon monoxide reaches a dangerous threshold. This detector gives you a clearer picture by displaying CO levels starting at **0 PPM**, so you can see changes in your air before an alarm is triggered

Don't just wait for an alarm. Know what's happening in your home.

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try it risk-free for 100 days

Your Purchase Is Protected by Our

100-Day “Sleep Peacefully” Guarantee

Sleep better. Worry less. Feel protected.

We're confident you'll love the peace of mind that comes with knowing what's happening in the air around you.

But if you're not completely satisfied for any reason, you have 90 days to get a full 100% refund.

That means you can try it in your home completely risk-free.

Your peace of mind matters. We'll take the risk.

More American Families. More Peace of Mind.

Already chosen by 500,000+ households across America to help protect what matters most.

FIND THE RIGHT CO DETECTOR FOR YOUR HOME

Choose the protection that fits your home and your family.

Apartments, condos2-Pack

GET 45% OFF

APARTMENTS, CONDOS 2-PACK
$198.00
$109.00

Only $54.50 each

Full home coverage
4-Pack

FREE SHIPPING AND EXTRA 5% OFF

FULL HOME COVERAGE 4-PACK
$396.00
$208.00

Only $52.00 each

Your home + parents' home8-Pack

FREE SHIPPING AND EXTRA 12% OFF

YOUR HOME + PARENTS' HOME 8-PACK
$792.00
$368.00

Only $46.00 each

YOUR QUESTIONS, ANSWERED

Title

More Than a Warning Light

Many traditional CO alarms simply use an indicator light to show their status. Our detector goes further by displaying the current carbon monoxide level on a digital screen, giving you a clearer picture of the air in your home.

From low-level readings to alarm conditions, you can see what's happening—not just wait for an alarm.

Will It False Alarm When I Cook?

Designed to distinguish carbon monoxide from common household conditions, our CO detector uses a high-quality electrochemical sensor for accurate and reliable detection. Normal cooking, toast, and shower steam should not trigger a CO alarm unless carbon monoxide reaches an alarm level.

You can cook, shower, and go about your day with confidence while your home stays protected.

Does It Detect Propane and Natural Gas, or Just Carbon Monoxide?

Our 4-in-1 detector monitors carbon monoxide, natural gas, and propane, plus temperature and humidity. The digital display gives you clear, real-time readings, so you can see gas levels instead of relying only on an alarm.

From everyday monitoring to potential gas hazards, you get multiple layers of protection in one device.

**One unit. Multiple threats. Clearer protection for your home.**

Where Should I Install the Detector?

Just plug it into a standard wall outlet. No wiring, tools, or professional installation required.

For effective coverage, place detectors near areas where gas or carbon monoxide hazards may occur, such as furnaces, stoves, and water heaters. Adding detectors near bedrooms and other sleeping areas can provide an additional layer of protection when your family is asleep.

For larger homes, using multiple detectors helps extend coverage across more rooms and floors.

**Plug it in. Place it where it matters. Stay informed.**

Is It Hard to Install?

Not at all. Simply plug the detector into a standard wall outlet and you're ready to go. No wiring, tools, ladders, or electrician required.

Installation takes just a few moments, so you can start monitoring your home with minimal setup.

How Many Detectors Do I Need?

The right number depends on the size and layout of your home. For better coverage, consider placing a detector on each floor, near sleeping areas, and close to fuel-burning appliances such as furnaces and water heaters.

Larger homes may benefit from additional detectors in separate rooms or areas.

**More coverage means more places monitored throughout your home.**

Can I use it if I live alone?

Absolutely. It's designed to provide reliable protection around the clock, even when you're asleep or home alone. It continuously monitors for dangerous carbon monoxide and alerts you when it detects a potential threat—giving you extra peace of mind, day and night.

What if I'm not satisfied with my purchase?

You're protected by our 100-Day Money-Back Guarantee. If you're not completely satisfied, simply contact us within 100 days and we'll make it right. No hassle, no complicated process.

Plus, if your detector ever stops working due to a product issue, we'll replace it for you at no additional cost.

My detector is hardwired. Isn't that better?

Not necessarily. A hardwired detector has continuous power, but the sensor inside can still wear out over time. A power light may stay on even when the sensor is no longer detecting properly.

Our detector is designed to give you a clearer indication of its operating status, so you can have greater confidence that your carbon monoxide protection is working when you need it most.

How fast will I receive my order?

Orders are shipped from our US warehouse. Most orders arrive within 5-7 business days after shipping.

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