Protect Your Family From the Silent Killer

Protect Your Family From the Silent Killer

First Watch is an easy-to-use CO & gas detector that shows you real-time danger levels - so you can protect your family before it's too late.

See Danger at 0 PPM — Not 70 PPM like cheap detectors that wait until it's too late

Plug & Protect — No ladder, no tools, no electrician. 30 seconds to install.

Works for Whole Family — Protects kids, parents, grandparents — everyone under your roof

Haven is an easy-to-use CO & gas detector that shows you real-time danger levels - so you can protect your family before it's too late.

See Danger at 0 PPM — Not 70 PPM like cheap detectors that wait until it's too late

Plug & Protect — No ladder, no tools, no electrician. 30 seconds to install.

Works for Whole Family — Protects kids, parents, grandparents — everyone under your roof

GET 60% OFF TODAY ONLY!

NOT AVAILABLE ON AMAZON OR EBAY

GET 60% OFF TODAY ONLY!

NOT AVAILABLE ON AMAZON OR EBAY

Satisfaction Guaranteed

Lifetime Warranty

Free Shipping

120-Day Money-Back-Gaurantee

Free Shipping

Satisfaction Guaranteed

Lifetime Warranty

30-Day Money-Back-Gaurantee

Don't Become Another Headline.

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.

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.

Every Breath Counts.
Cheap detectors wait. First Watch doesn't.

Introducing: The First Watch CO & Gas Detector

Haven is a professional-grade detector specifically designed to show you real-time CO, natural gas, and propane levels starting at 0 PPM.
 
It's an easy-to-use, accurate device that anyone can install in 30 seconds no ladder, no tools, no electrician.
 
Keeping a Haven in your home is one of the most important decisions you can make for yourself and your family.
 
Because the silent killer doesn't give warnings. Haven does.

Introducing: The First Watch CO & Gas Detector

Haven is a professional-grade detector specifically designed to show you real-time CO, natural gas, and propane levels starting at 0 PPM.
 
It's an easy-to-use, accurate device that anyone can install in 30 seconds no ladder, no tools, no electrician.
 
Keeping a Haven in your home is one of the most important decisions you can make for yourself and your family.
 
Because the silent killer doesn't give warnings. Haven does.

Designed By Firefighters. Built To Save Lives.

Designed By Firefighters. Built To Save Lives.

First Watch was developed with first responders who saw the same tragedy repeat itself — families with "working" detectors who never got the warning they deserved.

 

✓ UL 2034 Certified — Strictest CO detector standards in North America

✓ Professional-Grade Sensors — Same technology used by fire departments

✓ ETL Listed — Independently tested for safety and accuracy

 

First Watch isn't just another detector. It's the detector firefighters wish every home had.

 

Like having a fire station in your hallway — watching the air so you don't have to.

First Watch was developed with first responders who saw the same tragedy repeat itself — families with "working" detectors who never got the warning they deserved.

 

✓ UL 2034 Certified — Strictest CO detector standards in North America

✓ Professional-Grade Sensors — Same technology used by fire departments

✓ ETL Listed — Independently tested for safety and accuracy

 

First Watch isn't just another detector. It's the detector firefighters wish every home had.

 

Like having a fire station in your hallway — watching the air so you don't have to.

Meet the American Family's who protect themselves with First Watch

Meet the American Family's who protect themselves with First Watch

Over 500.000+ Homes upgraded already

Over 500.000+ Homes upgraded already

My Son Asked Me What The Numbers Mean. 

Best Question He Ever Asked.

"I was showing my 4 year old how it works and he pointed at the screen and asked what the numbers meant. I told him it means our air is safe tonight. He smiled and said good. I cried a little. This device gave me something I did not even know I needed. Not just protection. Proof. Every morning I look at it and I know my kids are breathing clean air. That is worth everything to me."

-Ashley K.

Verified Customer

My Husband Said I Was Overreacting. He Installed 

Three More The Next Day.

"I ordered FirstWatch after my neighbor told me about a CO scare in her building. My husband rolled his eyes and said I worried too much. I plugged it in anyway. That evening it showed a reading neither of us expected. He went on the website that same night and ordered the six pack. He has not said a word about me overreacting since. This device does not argue with you. It just shows you the truth."

-Donna R.

Verified Customer

Plugs In. Reads Immediately. Never 

Stops Watching.

"I did not think something this small could do what it does. Plugged it in next to my furnace and within seconds it was showing me the exact CO level in parts per million. My old detector just had a light. Green meant safe. That was all the information I got. FirstWatch shows me the actual number every single minute of every single day. There is no going back to blind trust after you have seen the real number."

-Robert M.

Verified Customer

What Makes First Watch So Different

How Many Rooms Is Your Family Worth Protecting? 

How Many Rooms Is Your Family 
Worth Protecting? 

CHOOSE YOUR BUNDLE:

CHOOSE YOUR BUNDLE:

Apartments, condos
2-Pack

Apartments, condos
2-Pack

First Watch Carbon Monoxide & Gas Detector – 2 Pack

$69.50

Per Detector

Total:

$199.00
$139.00

Full home coverage
4-Pack

Full home coverage
4-Pack

First Watch Carbon Monoxide & Gas Detector - 4 Pack

$54.50

Per Detector

Total:

$399.00
$219.00

Your home + parents' home 8-Pack

Your home + parents' 
home 8-Pack

First Watch Carbon Monoxide & Gas Detector – 8 Pack

$47.50

Per Detector

Total:

$789.00
$379.00

Your Purchase Is Protected By Our

Your Purchase Is Protected 

By Our

30-Day "Sleep In Peace" Guarantee

30-Day "Sleep In Peace" Guarantee

Here at First Watch, we make 

sure our customers feel safer — or  we

 refund 100% of their investment. We're 

so confident you'll finally sleep knowing your

 family is protected that we'll bear 

all the risk.

Here at First Watch, we make sure our customers feel safer — or we refund 100% of 

their investment. We're so confident you'll finally sleep knowing your family is 

protected that we'll bear all the risk.

Real, Verified Results: 
See Why Families Are Replacing 
Their Detectors and Calling First Watch 
"Life Saving"

Real, Verified Results: 
See Why Families Are 
Replacing Their Detectors 
and Calling First Watch 
"Life Saving"

Note: All reviews below are from actual paying customers. They have been authenticated and verified

Note: All reviews below are from actual paying customers. 

They have been authenticated and verified

Plugged It In & Had Peace Of Mind In 30 Seconds

“I bought this after reading about a family in my area who had a CO scare. I was nervous about installation but it literally just plugged into the wall. No ladder. No tools. No electrician. The display showed me the exact levels immediately and for the first time I actually knew my home was safe. My husband thought I was overreacting when I ordered it. He does not think that anymore.”

-Jessica R.

Verified Customer

Finally A Detector That Actually Tells Me 

The Truth

“I had a cheap detector on my wall for years and never thought twice about it. When I plugged in First Watch I could not believe the number it showed me. My old one never once went off. This one showed me exactly what was in my air from the very first second. I bought two more for my kids houses the same week.”

-Sandra M.

Verified Customer

I Showed My Whole Neighborhood This 

"I work with my hands all day and I thought I knew how to keep my home safe. I was wrong. Plugged this in and the reading on day one made my stomach drop. My old detector was showing nothing. First Watch showed me the truth. I pointed it out to my wife and she could not believe it either. This thing is not optional."

-Michael T.

Verified Customer

My Doctor Kept Telling Me It Was Just Stress

“For three winters in a row I was tired all the time. Headaches every morning. Brain fog by noon. I saw two different doctors and both said it was stress or getting older. It was not stress. It was not age. It was what was quietly building in the air of my own home every single night. First Watch was the first thing that actually gave me an answer. I wish I had found it three years ago.”

-Patricia W.

Verified Customer

Plugged It In & Had Peace Of Mind In 30 Seconds

“I bought this after reading about a family in my area who had a CO scare. I was nervous about installation but it literally just plugged into the wall. No ladder. No tools. No electrician. The display showed me the exact levels immediately and for the first time I actually knew my home was safe. My husband thought I was overreacting when I ordered it. He does not think that anymore.”

-Jessica R.

Verified Customer

Finally A Detector That Actually Tells Me 

The Truth

“I had a cheap detector on my wall for years and never thought twice about it. When I plugged in First Watch I could not believe the number it showed me. My old one never once went off. This one showed me exactly what was in my air from the very first second. I bought two more for my kids houses the same week.”

-Sandra M.

Verified Customer

I Showed My Whole Neighborhood This 

"I work with my hands all day and I thought I knew how to keep my home safe. I was wrong. Plugged this in and the reading on day one made my stomach drop. My old detector was showing nothing. First Watch showed me the truth. I pointed it out to my wife and she could not believe it either. This thing is not optional."

-Michael T.

Verified Customer

My Doctor Kept Telling Me It Was Just Stress

“For three winters in a row I was tired all the time. Headaches every morning. Brain fog by noon. I saw two different doctors and both said it was stress or getting older. It was not stress. It was not age. It was what was quietly building in the air of my own home every single night. First Watch was the first thing that actually gave me an answer. I wish I had found it three years ago.”

-Patricia W.

Verified Customer

WATCH OVER MY FAMILY NOW!

WATCH OVER MY FAMILY NOW!

Free Shipping

Satisfaction Guaranteed

Lifetime Warranty

30-Day Money-Back-Gaurantee

Satisfaction Guaranteed

Lifetime Warranty

Free Shipping

30-Day Money-Back-Gaurantee

Questions from Homeowners

How is First Watch different from my current detector?

Most detectors only show a green light which stays on even when the sensor is dead. They don't alarm until 70 PPM, which is AFTER 1-4 hours of exposure. First Watch shows you real-time levels from 0 PPM on a digital display. You see the truth, not a light that lies.

Will it false alarm when I cook?

No. First Watch uses professional-grade electrochemical sensors  the same type used in industrial settings. They detect real threats, not toast or shower steam.

Does First Watch detect propane and natural gas, or just carbon monoxide?

First Watch is a 4-in-1 detector. It monitors carbon monoxide, natural gas, AND propane, plus temperature and humidity. This is a critical distinction. Most cheap detectors from the hardware store only detect CO. If your stove leaks natural gas, your furnace has a propane leak, or your water heater line is compromised, those detectors stay completely silent. First Watch catches all three gas threats in real-time, with PPM readings on the display starting at 0. One unit. Complete protection. No gaps.

Where should I install First Watch? Does height or outlet position matter?

First Watch plugs into any standard wall outlet, no ladder, no tools, no electrician. 30 seconds and you're protected. For placement, focus on two priorities: near gas appliances (furnaces, stoves, water heaters) and in hallways outside bedrooms where your family sleeps. First Watch's sensors are calibrated to detect all three regardless of outlet height. Most families start with one near the furnace/water heater, one in the kitchen near the stove, and one in the hallway outside bedrooms. The 4-Pack covers most homes completely.

Is it hard to install?

No. Plug it into any eye-level outlet. That's it. Takes 30 seconds. No ladder, no tools, no electrician.

How many do I need?

One per floor + near bedrooms + near gas appliances (furnace, water heater, garage). Most homes need 4. Apartments typically need 2.

Can I use it if I live alone?

Yes! First Watch is perfect for people who live alone. It watches 24/7 and will alert you to danger even while you're sleeping. Many of our customers are seniors who live independently and wanted peace of mind.

What if it doesn't work for me?

You're covered by our 30-Day "Sleep in Peace" Guarantee. If you're not satisfied for any reason, we'll refund every penny. No questions. Plus, the Lifetime Guarantee means we replace it free if anything ever goes wrong.

My detector is hardwired. Isn't that better?

Hardwired means it runs on electricity, but the SENSOR inside still expires after 5-7 years. The green light stays on even when the sensor is dead. First Watch plugs in and shows you a real number, so you always know it's working.

How fast will I receive it?

Ships from US warehouse. 3-5 business days typically.

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