LifeFirst Carbon Monoxide & Gas Alarm
Carbon monoxide is invisible and odorless. Gas leaks are another serious household risk. LifeFirst brings clear CO readings and audible CO & gas alerts together in one simple device.
“It was almost 2 AM, and I was rocking my baby back to sleep when I came across a story about carbon monoxide poisoning. My stomach dropped. We have a gas furnace, a gas stove, and two little kids sleeping upstairs. I realized I had no idea what our old detector was actually measuring. … Because when you're a mom, the scariest things are sometimes the ones you can't see.”
Choose your package
For your home, your parents, the people you love.
Free bonus
The Complete Winter Home Safety Guide
Digital eBook · included with your pack
FREE
4-PACK · 4 detectors + free eBook · $159.00
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An ordinary night
Think about your home on an ordinary night.
The dishes are done. The doors are locked. The kids are finally asleep. The furnace turns on. The house settles into silence.
It’s the kind of night you never think twice about. And that’s exactly why home safety matters.
Carbon monoxide doesn’t have a smell. It doesn’t announce itself. You can’t rely on your senses to know it’s there.
A properly working alarm is essential. And having clear information about what your detector measures can make your home-safety setup easier to understand.
Because when it comes to the people you love, being prepared matters.
Carbon monoxide in the U.S., by the numbers
400+
Americans die from accidental, non-fire carbon monoxide poisoning every year.
100,000+
emergency room visits each year in the U.S. are linked to accidental CO exposure.
Winter
CO poisoning is more common in the colder months, when furnaces and heaters run the longest.
0 senses
Colorless. Odorless. Tasteless. You can’t see, smell or taste carbon monoxide.
Source: Centers for Disease Control and Prevention (cdc.gov), carbon monoxide poisoning facts.
Our key difference
Most of us have seen that little green light on a basic alarm. We know it’s there. We know it has a job to do.
But on models without a numerical display, we can’t look at the device and see a CO reading.
LifeFirst takes a different approach. Its digital screen gives you a visible reading, while its audible alarm provides the warnings specified for the device.
More understandable information. In a device designed for everyday home safety.
Don’t Just Wonder What Your Detector Is Measuring. See the Reading.
Basic alarm without a display
Status light onlyDigital CO display
Both matter: the screen shows a reading, and the audible alarm is what warns you. A displayed number never replaces the alarm, and a low number doesn’t guarantee your whole home is free of CO. Screen numbers on this page are a simulated demonstration.
Every breath counts
Standard CO alarms are built to sound only after carbon monoxide reaches certain levels for a certain time. Until then, they’re quiet, and a green light can’t tell you what’s happening. With LifeFirst, the reading is right there on the screen.
BASIC CO ALARMS
30 PPM
NO ALARMDesigned to stay silent at this level, and there’s no number to look at.
70 PPM
STILL WAITINGMay not sound until after 1 to 4 hours of continuous exposure.
150 PPM
FINALLY ALARMSSounds after 10 to 50 minutes. Until then, you had no idea.
LIFEFIRST
30 PPM
YOU SEE ITThe screen shows the number. You know something has changed.
70 PPM
YOU SEE IT RISINGThe reading on the screen changes. If the alarm sounds, get outside to fresh air and call 911.
150 PPM
LOUD ALARMThe built-in alarm sounds, and the screen tells you exactly what’s in the air.
Basic alarm timings reflect the UL 2034 response requirements for U.S. residential CO alarms. LifeFirst readings shown are an illustration; its audible alarm sounds at the thresholds in the product manual.
Two different hazards
Your kitchen. Your furnace. Your water heater. The systems that make a house feel like home also deserve attention and regular maintenance.
Carbon monoxide and combustible gas leaks are different hazards, with different safety considerations. LifeFirst brings CO information and gas alarm functionality together in one easy-to-understand device.
Hazard 1
Carbon Monoxide (CO)
Colorless and odorless. It can build up when a furnace, water heater, stove, fireplace or vehicle isn’t burning fuel or venting properly. Your senses can’t tell you it’s there.
LifeFirst shows the CO reading on its digital screen and has a built-in audible CO alarm.
Hazard 2
Combustible Gas Leaks
A different risk with different precautions. Utility natural gas is usually given an added smell, but you may not notice it while you’re asleep, away from the kitchen, or if your sense of smell is reduced.
LifeFirst adds combustible gas detection with an audible alert, in the same device.
If you smell gas or an alarm sounds, get everyone outside right away, then call 911 or your gas utility from a safe place.
Introducing
LifeFirst is an easy-to-use carbon monoxide and combustible gas alarm with a clear digital screen that shows the CO level it’s measuring, in parts per million.
Just plug it into a standard wall outlet. No tools, no wiring, no electrician. Everyone in the family, from your kids to your parents, can understand what the screen is telling them.
Carbon monoxide doesn’t announce itself. LifeFirst lets you see its levels.
Illustrative image
For parents
Being a parent means thinking about a thousand little things. Whether they’re warm enough. Whether the doors are locked. Whether they’re sleeping comfortably.
And sometimes, whether there are risks in your home you haven’t thought about yet.
You can’t remove every uncertainty from life. But you can make thoughtful choices about home safety, keep your alarms maintained, and make sure your family understands what those devices are telling them.
Because life comes first.
For Mom and Dad
They spent years looking after you. Now, sometimes, you’re the one checking in.
Are they doing okay? Is the house maintained? Do they understand their safety devices? It’s natural to think about these things, especially when you live miles apart.
Helping your parents review their home-safety setup is one meaningful way to show that you care. And a screen they can read at a glance makes that conversation easier.
Because protecting what matters doesn’t stop at your own front door.
Show me how it works
Plug it in
Plug LifeFirst into a standard wall outlet in a spot recommended by the manual, like the hallway outside the bedrooms. No tools, no wiring.
Get to know the screen and test
Familiarize yourself with each icon on the display and run the test function as directed.
Understand readings and alerts
Glance at the readings any time. If the alarm ever sounds, get everyone outside to fresh air right away and call 911. Don’t stay inside to investigate.
Simulated demonstration
CO reading (PPM)
The large number shows the carbon monoxide level the device is measuring, in parts per million.
Side by side
| Feature |  | |
|---|---|---|
| Numerical CO reading | Clear digital PPM display | Status light only |
| Detects combustible gas | CO + gas in one device | Usually CO only |
| Easy install | Plugs into a wall outlet | Often screwed to a wall or ceiling |
| Temperature & humidity | Shown on the screen | Not shown |
| Audible CO alarm | Built in | Built in |
| 90-Day Guarantee | Every order | Varies by brand |
Compared with basic CO alarms that have no numeric display. Features vary by brand and model.
Your family is the reason you work hard. The reason you come home. The reason you care about all the little things that make a house feel safe.
LifeFirst was built around a simple belief:
Because Life Comes First.
Choose your package
For Your Home. Your Parents. The People You Love.
2-PACK
The Essential Duo
2 detectorsAn easy starting point
For the places and people closest to you. A thoughtful first step toward a more informed home.
$49.50
Per Detector
Total: $99.00
Standard shipping rate shown at checkout
4-PACK
The Family Pack
4 detectorsFor your home and loved ones
Because the people you care about don’t always live under the same roof. Choose a package for your home and loved ones.
Free bonus
The Complete Winter Home Safety Guide
Digital eBook · included with your pack
FREE
$39.75
Per Detector
Total: $159.00
8-PACK
Family & Loved Ones
8 detectorsFor multiple households or loved ones
Your home. Your parents’ home. The people who have always been there for you. Make home safety part of the conversation.
Free bonus
The Complete Winter Home Safety Guide
Digital eBook · included with your pack
FREE
$33.63
Per Detector
Total: $269.00
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90-Day Guarantee
Customer reviews
out of 5
“I originally wanted a carbon monoxide detector for my parents, but knowing that one device could also alert them to potential gas leaks was a big reason I chose it. They're both in their 70s and still have a gas stove. I love the idea of having that extra layer of protection, especially since I can't always be there.”
“It was almost 2 AM, and I was rocking my baby back to sleep when I came across a story about carbon monoxide poisoning. My stomach dropped. We have a gas furnace, a gas stove, and two little kids sleeping upstairs. I realized I had no idea what our old detector was actually measuring. I wanted something that could show me the CO readings and help alert us to gas leaks, too. Because when you're a mom, the scariest things are sometimes the ones you can't see. All I wanted was to know I was doing everything I could to protect my family.”
“I'm 67 and have owned plenty of smoke and carbon monoxide alarms over the years. What caught my attention was the combination of CO and gas detection with a digital display. I don't want another complicated gadget. I want something straightforward that I can understand without pulling out a manual every time.”
“My husband and I recently bought our first house, and it has a gas furnace and gas stove. We started looking into carbon monoxide and gas safety and realized how important it was to have the right detectors. The clear display was what initially caught my eye, but the dual protection is what really interested me.”
“My grandchildren stay over almost every weekend, and I always want to make sure my home is as safe as possible. I never really thought about the difference between carbon monoxide and a gas leak until I started researching detectors. Having one device designed to monitor both is something I can really appreciate.”
“I was shopping for a carbon monoxide alarm when I came across the idea of a combined CO and gas detector. It made sense to me, especially since my parents have older gas appliances at home. I liked the digital screen and ended up looking at multiple units for different family members. It's one of those things you hope you'll never need, but want to have.”
Our promise
Confidence beyond checkout. Every LifeFirst order is backed by our 90-day guarantee, so you can protect the people you love with complete peace of mind.
Questions
Still have a question? Contact us
You can’t predict everything. But you can take home safety seriously, choose dependable equipment, and make informed decisions for the people you love.
LifeFirst. Because Life Comes First.