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Recommended by firefighters

Protect your family from the silent killer. Everywhere.

  • Live Reading

  • Early Alarm

  • No Installation

Hotel

Rentals

Cars

Abroad

RVs

Camping

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Robert Smith

Firefighter, 20+ years of service

"I've responded to carbon monoxide calls in hotel rooms, RVs and everywhere in between more times than I can count. Bring your own detector."

Hotel

Rentals

Cars

Abroad

RVs

Camping
Title

As featured in

Title

The silent killer goes wherever you go.

Carbon monoxide kills more than 400 Americans a year and sends 100,000 to the ER. It has no smell, no color, no taste. And in almost every hotel room, rental, RV, car and campsite you will ever sleep in, there is nothing on the wall to warn you. You are the only alarm in the room.
Accordion

It comes from anything that burns fuel: boilers, water heaters, generators, engines, heaters. Your nose, your eyes, your instincts can’t detect it. By the time you feel anything, it’s already in your blood.

Your home has an alarm because the law made someone put it there. The hotel didn't have to. The Airbnb host ticked a box nobody checked. The RV's alarm expired years ago. Your car never had one. The room you're in tonight was never built to warn you.

Headache, tiredness, nausea. You blame the flight, the food, the long drive, and you lie down. Nobody connects it to the room. Most of it happens at night, to people who never wake up to find out.

Why they call it the silent killer

Title
Title

Odorless

Invisible

Tasteless

No alarm

required

Mistaken for 

a headache

Strikes while

 you sleep

What you're counting on

Every one of them thought they were safe.

ASSUMED

the hotel’s alarm

Not required in 36 states. Most rooms have none.

SELF-REPORTED

the rental listing

“CO alarm: yes” is ticked by the host. Nobody verifies it.

EXPIRED

the rv’s built-in alarm

Expires after 5–7 years. Most owners never replace it.

NONEXISTENT

your car

Has no CO detection at all. Never has.

NO LAW

the country you’re visiting

Most vacation destinations have no detector laws. None.

CAN’T DETECT IT

you

No smell, no colour, symptoms that feel like a headache, and most of it happens while you sleep.

"Every one of those relies on someone else, or on you noticing. Carbon monoxide gives you neither.

I've walked into hotel rooms and campers where the reading was over 100 and the family inside had no idea. No alarm on the wall, everyone blaming the headache on the trip. Don't count on the room. Carry your own."
Title

Robert Smith

|

 Firefighter, 20+ years of service

It happens to everyday Americans.

Real trips. Real readings. They only found out because they brought a detector.

Before / After Testimonial Carousel
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The Solution

SentivoGO™ Portable Air Detector

Small enough to bring everywhere. Loud enough to wake you. Shows you the number before it becomes an emergency.

Live Digital Reading

Shows the exact carbon monoxide level on screen, in real time. You see 20, 30, 40 ppm before an alarm would ever sound.

Early Warning Alarm

Orange screen and alarm at 50 ppm. Red screen and faster alarm at 100 ppm. Loud enough to wake everyone in the room.

Goes Everywhere You Go

115 grams, fits in a pocket, allowed in carry-on luggage. Nightstand, dashboard, RV counter, tent floor. No installation, nothing to mount.

Always Ready

Rechargeable, 5–7 days on a single charge. No batteries to hunt for, no expiry date to remember. Also shows temperature and humidity.
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How It Works

What SentivoGO™ does the moment you switch it on

Three screens. You’ll only ever need to understand one.

1 Clear
0 ppm
Clear state

It checks the air continuously from the moment you switch it on. As long as it reads zero, you don't think about it.

YOU DONothing.
2 Warning
50 ppm
Warning state

Screen turns orange and the alarm sounds. This is early: no symptoms yet, plenty of time.

YOU DOOpen a window. Step out. Find the cause.
3 Danger
100 ppm
Danger state

Screen turns red and the alarm gets faster. It keeps sounding until the level drops.

YOU DOLeave. Take everyone with you.
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Everywhere It Works

Wherever you go, SentivoGO™ works

Hotels, rentals, cars, resorts abroad, RVs, tents. One detector for all of them.

Hotels

Hotels

On the nightstand, next to the phone. Watching the air behind the wall you can’t see.

Title

Only 14 U.S. states require CO alarms in hotel rooms.

Rentals

Rentals

Airbnb, cabin, beach house. The listing said there’s an alarm. Now there is.

Title

Airbnb doesn’t require hosts to install CO alarms. The checkbox is self-reported.

Cars

Cars

On the dash, in the cup holder. For the snowstorm, the long drive, the night in the car.

Title

Cars have no carbon monoxide detection. A blocked tailpipe can fill a cabin in minutes.

Abroad

Abroad

Resort, guesthouse, apartment. Different country, different rules. Usually none.

Title

The U.S. Embassy in Costa Rica advises travelers to carry a portable CO detector.

RVs

RVs

On the counter, above the bunk. A backup for the alarm that came with the rig.

Title

Built-in RV alarms expire after 5–7 years. Most are never replaced.

Camping

Camping

In the tent, in the cabin, next to the heater. The one place with no alarm at all.

Title

Heaters and stoves inside a tent can reach dangerous levels in minutes.

Built To Go

Title
Title

115 grams

Rechargeable

5–7 days

Alarm at 50 ppm

Temp & humidity

Carry-on approved
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How To Use

Charge it. Switch it on. Set it down.

No installation, no setup, no app. Thirty seconds and it’s watching the air.

1

Title

2

Title

3

Charge it

One charge lasts 5–7 days. Charge it the night before you leave, like your phone.

Switch it on

Hold the button. It starts checking the air immediately. The screen shows the live number, the temperature and the humidity.

Set it down

Nightstand, dashboard, RV counter, tent floor. Anywhere near where you are. Then forget about it. If the air changes, it tells you.

1

Charge it

One charge lasts 5–7 days. Charge it the night before you leave, like your phone.

2

Charge it

One charge lasts 5–7 days. Charge it the night before you leave, like your phone.

3

Charge it

One charge lasts 5–7 days. Charge it the night before you leave, like your phone.
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If It Goes Off

What a bad night looks like with SentivoGO™ in the room

Most nights it reads zero. This is the one that matters.

11:40 PM

Everyone's asleep. SentivoGO™ reads 0 ppm on the nightstand.

11:40 PM

1:15 AM

The number starts climbing. 12, 18, 25. A heater or boiler somewhere in the building. Nobody smells a thing.

1:15 AM

1:52 AM — 50 ppm

Screen turns orange. Alarm sounds. You're awake before anyone has a headache.

1:52 AM — 50 ppm

1:55 AM

Windows open, door open, kids up, everyone in the hallway. The number starts dropping as soon as the air moves.

1:55 AM

Morning

You tell the front desk or the host. They find the cause. You'd never have known. Now you do.

Morning
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The Facts

Recommended by firefighters. 

Backed by the numbers.

Nothing on this page is our opinion. These are the figures.

Carbon monoxide by the numbers

400+

Americans killed by carbon monoxide every year

CDC

100K+

Emergency room visits a year

CDC

14

U.S. states that require CO alarms in hotel rooms

NCSL

0

Countries in Latin America with widespread CO detector laws

U.S. Embassy, Costa Rica

 

"By the time you feel it, you've been breathing it for hours. A reading on a screen is the only warning you get that early."

Robert Smith

Firefighter, 20+ years of service
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Try it risk-free

100-Night Money Back Guarantee

Take SentivoGO™ on your next trip. Put it on the nightstand, the dash, the RV counter. If after 100 nights you don't feel safer with it than without it, email us and we'll refund you in full. No forms, no questions.

You'll know on the first night. We're giving you a hundred.

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Real people. Real trips. 50K+ Protected Families

Excellent

"Packed it out of habit for a beach trip, never thought I'd actually need it. It read zero all week, which is exactly what I wanted. Sat on the nightstand next to my glasses and I honestly slept better knowing it was there. It comes on every trip now, no discussion. My husband thought it was overkill until the third night when he asked what the number said."

Margaret

Verified Buyer

Hotel, Florida

"Built-in alarm in our rig is older than our grandkids. This is the backup. You can see the
number instead of waiting for a beep."

Dale

Verified Buyer

RV, full-timer

"Rented an apartment in Lisbon with a gas water heater in the bathroom and it never crossed my mind that there'd be no alarm. This changed that. Checked it every night like a weirdo. Always zero. Worth it for the peace of mind alone."

Priya

Verified Buyer

Airbnb, Portugal

"Propane heater in a tent. We all know, we all do it. Now there's a number in front of me. Holds up in the cold, easy to read at night."

Tyler

Verified Buyer

Camping, Utah

"My daughter made me bring it. I rolled my eyes, packed it, and then the resort didn't have a single alarm in the room. Suddenly I understood. Tiny thing, went through airport security without a question, and now I'm the one telling my friends."

Janet

Verified Buyer

Resort, Mexico

"Bought it after the story about that family in the car in Ohio. Lives in my center console now. Two kids in the back, winter mountain driving, I'd rather know than guess."

Marcus

Verified Buyer

Road trips, Colorado
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Free travel gear with every 2+ pack

Free gear reserved for 

00
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00
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Starter

STARTER

“For your next stay.”

SentivoGO™ Portable Air Detector

Regular Price: 

$80.00
$49.00

Travel case

$39.98 

FREE

Free US shipping

$39.98 

FREE

Priority support

$39.98 

FREE

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Most Popular

TRAVELER

“For every stay.”

SentivoGO™ Portable Air Detector

Regular Price: 

$160.00
$98.00

Free Travel Case

$39.98 

FREE

Free US shipping

$4.99

FREE

Priority support

INCLUDED

100 Days Money Back Guarantee

Best Value

EXPLORER

“For every trip, every time.”

SentivoGO™ Portable Air Detector

Regular Price: 

$240.00
$147.00

Free Travel Case

$39.98 

FREE

Free Mount

$14.99 

FREE

Free US shipping

$4.99

FREE

Priority support

INCLUDED

100 Days Money Back Guarantee

Frequently Asked Questions

Yes. Portable carbon monoxide detectors are allowed in both carry-on and checked bags. Because SentivoGO™ is rechargeable, keep it in your carry-on like any device with a lithium battery, and switch it off for the flight.
It measures carbon monoxide in parts per million and shows the reading live on screen, so you're not trusting a beep, you're watching a number. At 50 ppm it warns you; at 100 it tells you to leave. Those are the levels where the air is unsafe but you still have time to act.
The U.S. Embassy in Costa Rica advises travelers to carry one. The CDC counts 400+ deaths and over 100,000 emergency visits a year. Only 14 states require alarms in hotel rooms. It's not paranoid; it's the one thing nobody else in the building is doing for you.
Most don't, and you can't check the one that claims to. If the room does have one, SentivoGO™ costs you nothing. If it doesn't, it's the only alarm in the room.
It shows the live number, so you always know why it's alarming. A brief blip reads as a small number that drops back to zero. A real problem reads as a number that keeps climbing. The alarm only sounds at 50 ppm and above
Orange: open a window, step out, find the cause. Red: leave the room, take everyone with you, get fresh air, tell the host or front desk. Don't go back in until the number reads zero.
Near where you sleep or sit, roughly at breathing height: nightstand, RV counter, car cup holder. Not on the floor, not next to an open window or a vent. Carbon monoxide mixes evenly with air, so it doesn't need to be on the ceiling.
5–7 days on a charge. Charge it the night before a trip, like your phone. It ships fully charged.
No. SentivoGO™ detects carbon monoxide, and shows temperature and humidity. It's not a smoke detector or a gas-leak detector, and it doesn't replace them.
The sensor is rated for 2–3 years of use. After that it needs replacing, like the alarm in your house. That's still hundreds of trips, and we'd rather you know upfront than find out later.
One unit covers one room. If your family sleeps in more than one room, or one of you drives while the other stays in the RV, the Traveler covers both. The Explorer adds a third unit and the mount for the car or the rig.
Email us within 100 nights and we refund you in full. No forms, no questions.
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