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CarbonOne Safe
★★★★★ Excellent | 17,127+ 5 Star Reviews

Your Old Detector Shows a Green Light. This One Shows the Truth.

  • One Device, 4 Dangers: watches for carbon monoxide, natural gas, propane and smoke
  • Warns You Early: sees danger rising long before it becomes an emergency
  • Real Numbers on Screen: know exactly what you're breathing, every second
  • Plug and Done: any outlet, 5 seconds, no tools or ladders
  • Never Goes Dark: battery backup keeps it watching during outages
  • Checks Itself: automatic self-tests so you never have to wonder
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Sandra K.
"Never thought about CO until a friend had a scare. Plugged this in, saw the zero on the screen and felt better instantly. It just sits there and does its job."Sandra K., Verified Customer
CarbonOne Safe detector plugged into a kitchen outlet showing live readings

The Gas You Can't See, Smell or Taste Is the #1 Cause of Accidental Poisoning Deaths in America.

More than 400 Americans lose their lives to it every year. Most never knew it was in their home.

A detector on the wall doesn't mean your family is safe.

Carbon monoxide gives no warning. It comes from everyday things like your furnace, water heater, stove or fireplace. A tiny leak at night is enough. There's no smoke, no noise, no smell. The levels simply creep up while everyone is asleep.

Headaches, tiredness and brain fog get blamed on stress or poor sleep. Meanwhile the real cause keeps building, night after night.

100,000+ER visits per year due to CO exposure
400+accidental deaths per year due to CO exposure
84%of fatal CO incidents occur from September to April
⚠ No Warning: many detectors can stay silent during long exposure to low or mid-level carbon monoxide, even though those levels can still cause serious health problems.

151,637+ American Families Already Sleep Easier

They stopped guessing and started seeing. CarbonOne Safe watches for carbon monoxide, natural gas, propane and smoke around the clock, and shows the numbers live.

Families using CarbonOne Safe at home
CarbonOne Safe live digital display
Live Display

Stop Guessing. Start Seeing.

Do you know what quality of air your family is breathing right now? Most detectors stay silent until CO hits 70 Parts Per Million (PPM). By then you've been breathing it for hours.

The CarbonOne Safe monitors from 0 PPM and shows you live CO and gas levels every second of every day. Not a green light. Not a guess. A real number, in real time, so you always know your family is safe.

"I look at that screen every morning before I make coffee. Seeing '0' every day has completely changed how I feel in my own home."Michelle R., Ohio
4-in-1 protection: CO, natural gas, propane and smoke
4-in-1

4 Threats Covered By 1 Device

Most detectors only watch for one danger. CarbonOne Safe gives your home 4-in-1 protection by monitoring carbon monoxide, natural gas, propane and smoke from fire in one device.

With clear real-time readings and instant alerts, you can spot danger early and act fast.

"I bought CarbonOne Safe for CO protection, but it ended up alerting us to a kitchen fire. A pan started smoking while we were in the other room, and the alarm went off before we noticed. We got there fast and stopped it before it got serious."Chris K., Minnesota
CarbonOne Safe sounding an alarm at night
Instant Alert

A Loud Alarm That Wakes Everyone Up

When danger hits, seconds matter. The CarbonOne Safe sounds an immediate alarm alerting your family that CO, gas or smoke has been detected, cutting through sleep and noise. No confusion. Just fast, clear action when it counts most.

"My daughter is 7. She heard the alarm during our test and knew exactly what to do. That alone was worth every penny."David T., Georgia
Easy Setup

Ready in 5 Seconds. Really.

No ladder. No tools. No electrician. Plug the CarbonOne Safe into any standard outlet and your family is fully protected.

"I'm 71 years old and set it up myself. Didn't need to call my son for help for once. That felt pretty good."Barbara K., Florida
Battery backup keeps monitoring during power outages
Battery Backup

Still Watching When the Power Goes Out

Power outages don't pause gas leaks or fires. The CarbonOne Safe keeps monitoring your home even when the lights go out, because the moments you're most vulnerable are exactly when you need it most.

"We lost power during a storm last winter. First thing my husband said was 'at least the CarbonOne Safe is still running.' That's when I knew we made the right call."Sandra M., Michigan
CarbonOne Safe running self-checks near the furnace
Self-Testing

It Tells You It's Working

Most detectors fail silently. The green light stays on long after the sensor dies and you'd never know. The CarbonOne Safe continuously runs self-checks so you never have to wonder if it's working. It always is.

"I thought we were safe because our detector never went off, but an annual HVAC inspection found a dangerous leak our 'working' alarm completely missed. Never making that mistake again."James L., Texas
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Inside the CarbonOne Safe: electrochemical sensor and battery

The Same Sensor Tech Professionals Rely On

The CarbonOne Safe uses certified electrochemical sensor technology found in professional-grade detection equipment across the US. It monitors continuously, self-tests automatically, and runs on backup power even when the power goes out.

This isn't a light that blinks green and hopes for the best. It's a real-time detection system built for the one job that matters: keeping your family breathing safe air.

Everything Your Home Needs in One Small Device

Whole-home coverage with CarbonOne Safe
⏱

Early 24/7 CO Detection

Most detectors wait until CO hits 70 PPM. CarbonOne Safe monitors from 0 PPM so you see danger rising in real time.

🛡

4-in-1 Protection

Monitors carbon monoxide, natural gas, propane and smoke due to fire. One device, zero gaps.

🔔

Instant Alarm Alert

Sounds immediately when CO, gas or smoke is detected so your family knows to get out fast.

🔌

5-Second Setup

Plug into any standard outlet. No tools, no wiring, no hassle.

🔋

Battery Backup

Keeps monitoring even when the power goes out.

✔

Always Self-Testing

Runs automatic safety checks around the clock so you never have to wonder if it's working.

5

5-Year Rated Lifespan

Built to protect your home for years, not months.

CarbonOne Safe vs. The Detector on Your Wall

★★★★★ 4.8 out of 5

CarbonOne SafeStandard Detectors
Shows real-time CO levels✓ Yes✗ No
Detects CO, natural gas, propane and smoke✓ Yes✗ No
Early alert system✓ Yes✗ No
Easy install✓ Yes✗ No
Battery backup✓ Yes✗ No
Self-testing✓ Yes✗ No
Service life5 YearsUp to 2 years, if you're lucky
Guarantee90 Days✗ No
90Day Money
Back

Try It For 90 Days. Love It or Get Your Money Back.

Plug in your CarbonOne Safe and live with it for a full 90 days. If it doesn't give you more peace of mind than any detector you've owned, send it back for a full refund. No questions asked.

Choose Your Package: Up To 70% OFF

Tip: place one unit per floor, one near gas appliances and one outside each bedroom. Most families choose 3 units for full coverage.

1x CarbonOne Safe

Save 50%
$138.00
$69.00/ea
Total: $69.00
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2x CarbonOne Safe

Save 55%
$276.00
$62.10/ea
Total: $124.20
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★ Most Popular

3x CarbonOne Safe

Save 60%
$414.00
$55.20/ea
Total: $165.60
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★ Best Deal

4x CarbonOne Safe

Save 65%
$552.00
$48.30/ea
Total: $193.20
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5x CarbonOne Safe

Save 70%
$690.00
$41.40/ea
Total: $207.00
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Free fast shipping from US warehouse90-Day Money-Back Guarantee5 Years of Protection

98.4% WOULD RECOMMEND THIS PRODUCT

Real Families. Real Peace of Mind.

4.8★★★★★
Based on reviews from 17,127+ customers
Easy Setup4.9
Detection Accuracy4.8
Display Clarity4.8
Alarm Response4.9
Value for Money4.9
Jessica C.
Jessica C.✔ Verified Buyer
★★★★★

Works great

Plugged it in and it was up and running. Love that you can actually see the numbers on the screen. Our old one just had a green light. Highly recommend.

Mark T.
Mark T.✔ Verified Buyer
★★★★★

Good product

Does what it says. Easy to set up and the display is clear. Glad I finally got one of these. Will be buying more for the rest of the house and family.

David S.
David S.✔ Verified Buyer
★★★★★

Great value

Doesn't just cover CO but gas as well which most cheap ones don't. Screen is clear, setup took no time. Great price considering everything it covers.

Donna R.
Donna R.✔ Verified Buyer
★★★★★

Easy to use

I'm not tech savvy at all and had zero issues setting this up. Just plugged it in. Screen came on. Done. My daughter kept telling me to get one and I'm glad she did.

James W.
James W.✔ Verified Buyer
★★★★★

Bought 3

Started with one and ordered two more the same week. Put one near the furnace, one in the kitchen and one in the hallway. Peace of mind knowing the whole house is covered.

Kevin M.
Kevin M.✔ Verified Buyer
★★★★★

Simple and effective

Plugged it in and it was running immediately. Screen is clear and easy to read. Does exactly what I needed it to do. No complaints.

Patricia M.
Patricia M.✔ Verified Buyer
★★★★★

Happy with this

Was looking for something simple that just works. This is it. Screen shows you the levels, alarm goes off if something is wrong. Fast shipping too.

Carol B.
Carol B.✔ Verified Buyer
★★★★★

Got one for my mom

She's older and lives alone. Wanted something easy for her to use. She had it set up herself in under a minute. Simple and gives us both peace of mind.

Lisa H.
Lisa H.✔ Verified Buyer
★★★★★

Worth it

Spent way too long relying on an old detector with a green light. This actually shows you what's in the air. Already ordered another one for upstairs.

Tom L.
Tom L.✔ Verified Buyer
★★★★★

Solid

Simple to set up, works as advertised. Battery backup is a nice touch. Screen is easy to read. Does exactly what I needed it to do.

Nancy G.
Nancy G.✔ Verified Buyer
★★★★★

Really like this

Husband was skeptical but once he saw the live reading on the screen he loved it. Big difference from just having a light that blinks.

Brian C.
Brian C.✔ Verified Buyer
★★★★★

Great buy

Got this after a neighbor mentioned their old detector had failed without them knowing. Setup took less than a minute. Really glad I got it.

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Got Questions? We've Got Answers

What does the CarbonOne Safe actually detect?

It detects carbon monoxide, natural gas, propane and smoke due to fire. Most cheap detectors only cover CO. This one covers it all in one device.

How do I install it?

Plug it into any standard wall outlet. That's it. No tools, no ladder, no electrician. Takes 5 seconds.

What does the number on the screen mean?

It shows you the live CO level in your home at all times. Zero means your air is clean. The higher the number, the more CO is present. If levels get dangerous the alarm goes off automatically.

How is this different from my current detector?

Most standard detectors just show a green light and don't alarm until CO hits 70 PPM. By then you've already been breathing it for hours. The CarbonOne Safe shows you real numbers starting at 0 PPM so you see danger rising before it becomes an emergency.

What happens if the power goes out?

The built-in battery backup keeps it running even when the power goes out.

How do I know it's actually working?

It runs automatic self-checks continuously. You don't have to do anything. If something is wrong it will tell you.

How long does it last?

The CarbonOne Safe is rated for 5 years. Most cheap detectors burn out in 2 to 3 years while the green light keeps glowing like nothing is wrong.

Where should I put it?

Near gas appliances like your furnace, water heater or stove, and in the hallway outside bedrooms. Most homes are fully covered with 2 to 4 units.

How many do I need?

One per floor is a good starting point. Add one near any gas appliance and one outside each sleeping area for full coverage. Most families need 2 to 4.

How long does shipping typically take?

Orders are dispatched within 48 business hours. Standard delivery usually takes 2 to 3 days. Once your order ships, you receive a tracking link by email.

CarbonOne Safe protecting a living room at night

Tonight, Know Your Family Is Breathing Safe Air.

You can keep hoping the old green light still works, or you can see a real number that tells you your home is safe. It takes 5 seconds to plug in and comes with a 90-day money-back guarantee.

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Mike D.
"Had no idea my old detector could just stop working with the light still on. Picked this up after reading about it. Plugged it in, screen showed zero, done. Runs itself from there."Mike D., Verified Customer

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